ToDo: diffs FF61-FF62

[earthlng]

FF62 is scheduled for release 5th Sept

FF62 Release notes
FF62 for developers
FF62 compatibility

120 diffs ( 51 new, 43 gone, 26 different )

new in v62.0:

• pref("toolkit.winRegisterApplicationRestart", true); 603903 - 6717bc0
• pref("extensions.systemAddon.update.enabled", true); 0505
• pref("dom.clearSiteData.enabled", false); 1268889
  • added here for visibility, allows sites to clear site data when it detects it's in a bad state. It has nothing to do with FF's or your ability to control site data

removed, renamed or hidden in v62.0:

• pref("browser.urlbar.autoFill.typed", true); - 1239708 - 776e32c
  • note: we REMOVED this from our user.js as it's already covered by browser.urlbar.autoFill
• pref("plugin.state.java", 1); - c805dd8

changed in v62.0:

• pref("browser.startup.blankWindow", true); // prev: false - 1336227 - 8b5547a
• pref("security.tls.version.fallback-limit", 4); // prev: 3 1203 - 1479501 - 9a46faf
  • note: we REMOVED this from our user.js
• pref("browser.cache.offline.insecure.enable", false); // prev: true 2730b
• pref("startup.homepage_welcome_url", "about:welcome"); // prev: "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/firstrun/" 5000

---

ignore

click me for details

==NEW

pref("browser.history_swipe_animation.disabled", false); // not privacy related
pref("browser.newtabpage.activity-stream.asrouterOnboardingCohort", 0);
pref("browser.newtabpage.activity-stream.fxaccounts.endpoint", "https://accounts.firefox.com/");
pref("browser.newtabpage.activity-stream.improvesearch.noDefaultSearchTile", true);
pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts", false);
pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", "");
pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", "google");
pref("browser.newtabpage.activity-stream.section.highlights.rows", 2);
pref("browser.newtabpage.activity-stream.section.topstories.rows", 1);
pref("browser.safebrowsing.provider.mozilla.lists.base", "moz-std");
pref("browser.safebrowsing.provider.mozilla.lists.content", "moz-full");
pref("browser.security.newcerterrorpage.enabled", false);
pref("browser.sessionstore.resuming_after_os_restart", false);
pref("browser.tabs.multiselect", false);
pref("browser.tabs.remote.tabCacheSize", 0);
 // ^ temp(?) change due to (e10s) related issues
pref("devtools.debugger.pause-on-caught-exceptions", true);
pref("devtools.inspector.fonthighlighter.enabled", false);
pref("devtools.inspector.three-pane-first-run", true);
pref("dom.webcomponents.shadowdom.report_usage", false);
pref("devtools.webconsole.jsterm.codeMirror", false);
pref("dom.mutation-events.cssom.disabled", true);
pref("dom.serviceWorkers.parent_intercept", false);
pref("extensions.webextensions.ExtensionStorageIDB.enabled", false);
pref("gfx.webrender.debug.echo-driver-messages", false);
pref("gfx.webrender.debug.new-frame-indicator", false);
pref("gfx.webrender.debug.new-scene-indicator", false);
pref("gfx.webrender.program-binary-disk", true);
pref("io.activity.intervalMilliseconds", 0);
pref("layout.accessiblecaret.script_change_update_mode", 0);
 // ^ https://hg.mozilla.org/mozilla-central/rev/92022a209721pref("image.animated.resume-from-last-displayed", true);
pref("layout.css.property-append-only", false);
pref("layout.css.scrollbar-colors.enabled", false);
pref("layout.css.webkit-appearance.enabled", false);
pref("layout.css.xul-display-values.content.enabled", false);
pref("network.cookie.maxNumber", 3000);
pref("network.cookie.maxPerHost", 180);
pref("network.sts.poll_busy_wait_period", 50);
pref("network.sts.poll_busy_wait_period_timeout", 7);
pref("network.sts.pollable_event_timeout", 6);
pref("pdfjs.scrollModeOnLoad", 0);
pref("pdfjs.spreadModeOnLoad", 0);
pref("print.font-variations-as-paths", true);
pref("privacy.trackingprotection.storagerestriction.enabled", false);
pref("services.blocklist.addons.signer", "remote-settings.content-signature.mozilla.org");
pref("services.blocklist.gfx.signer", "remote-settings.content-signature.mozilla.org");
pref("services.blocklist.onecrl.signer", "onecrl.content-signature.mozilla.org");
pref("services.blocklist.pinning.signer", "pinning-preload.content-signature.mozilla.org");
pref("services.blocklist.plugins.signer", "remote-settings.content-signature.mozilla.org");

==REMOVED or HIDDEN

pref("browser.EULA.version", 3);
pref("browser.rights.3.shown", false);
pref("browser.rights.version", 3);
pref("browser.safebrowsing.provider.mozilla.lists.base.description", "mozstdDesc");
pref("browser.safebrowsing.provider.mozilla.lists.base.name", "mozstdName");
pref("browser.safebrowsing.provider.mozilla.lists.content.description", "mozfullDesc2");
pref("browser.safebrowsing.provider.mozilla.lists.content.name", "mozfullName");
pref("browser.search.defaultenginename", "chrome://browser-region/locale/region.properties");
pref("browser.search.defaultenginename.US", "data:text/plain,browser.search.defaultenginename.US=Google");
pref("browser.search.order.1", "chrome://browser-region/locale/region.properties");
pref("browser.search.order.2", "chrome://browser-region/locale/region.properties");
pref("browser.search.order.3", "chrome://browser-region/locale/region.properties");
pref("browser.search.order.US.1", "data:text/plain,browser.search.order.US.1=Google");
pref("browser.search.order.US.2", "data:text/plain,browser.search.order.US.2=Bing");
pref("browser.snapshots.limit", 0);
pref("devtools.devedition.promo.enabled", false);
pref("devtools.devedition.promo.shown", false);
pref("devtools.devedition.promo.url", "https://www.mozilla.org/firefox/developer/?utm_source=firefox-dev-tools&utm_medium=firefox-browser&utm_content=betadoorhanger");
pref("devtools.inspector.three-pane-toggle", false);
pref("devtools.telemetry.tools.opened.version", "{}");
pref("devtools.toolbar.enabled", true);
pref("devtools.toolbar.visible", false);
pref("devtools.webconsole.autoMultiline", true);
pref("extensions.geckoProfiler.symbols.url", "http://symbols.mozilla.org/");
pref("extensions.minCompatibleAppVersion", "4.0");
pref("extensions.minCompatiblePlatformVersion", "2.0");
pref("gfx.webrender.all", false);
pref("gfx.webrender.enabled", false);
pref("gfx.webrender.hit-test", true);
pref("hangmonitor.timeout", 0);
pref("image.mem.max_decoded_image_kb", 256000);
pref("javascript.options.array_prototype_values", true);
pref("layout.accessiblecaret.allow_script_change_updates", false);
pref("layout.css.getPropertyCSSValue.enabled", false);
pref("layout.css.text-combine-upright-digits.enabled", false);
pref("layout.event-regions.enabled", false);
pref("network.activity.intervalMilliseconds", 0);
pref("network.dir.format", 2);
pref("plugin.java.mime", "application/x-java-vm");
pref("security.allow_chrome_frames_inside_content", false);
pref("security.OCSP.GET.enabled", false);

==CHANGED

pref("apz.android.chrome_fling_physics.enabled", true); // prev: false
pref("browser.cache.disk.max_chunks_memory_usage", 40960); // prev: 10240
pref("browser.cache.disk.max_priority_chunks_memory_usage", 40960); // prev: 10240
pref("device.sensors.ambientLight.enabled", false); // prev: true
pref("device.sensors.proximity.enabled", false); // prev: true
pref("devtools.debugger.ignore-caught-exceptions", true); // prev: false
pref("devtools.inspector.show-three-pane-tooltip", true); // prev: false
pref("devtools.inspector.three-pane-enabled", true); // prev: false
pref("devtools.new-animationinspector.enabled", true); // prev: false
pref("devtools.toolbox.previousHost", "right"); // prev: "side"
pref("dom.ipc.plugins.sandbox-level.flash", 3); // prev: 2
pref("dom.registerContentHandler.enabled", false); // prev: true
pref("dom.registerProtocolHandler.insecure.enabled", false); // prev: true
pref("extensions.geckoProfiler.getSymbolRules", "localBreakpad,dump_syms.exe"); // prev: "localBreakpad,remoteBreakpad,dump_syms.exe"
pref("gfx.webrender.async-scene-build", true); // prev: 2
pref("image.animated.decode-on-demand.threshold-kb", 20480); // prev: 4194303
pref("layers.enable-tiles-if-skia-pomtp", true); // prev: false
pref("layout.css.shape-outside.enabled", true); // prev: false
pref("layout.display-list.retain", true); // prev: false
pref("network.http.throttle.version", 1); // prev: 2
pref("network.trr.blacklist-duration", 60); // prev: 1200
pref("security.pki.name_matching_mode", 3); // prev: 1

[earthlng]

some bugzilla tickets

• apz.android.chrome_fling_physics.enabled
  Bug 1460206 - Let the new Android fling physics ride the trains.
  Bug 1459293 - Enable new Android fling physics on the Nightly channel.
  Bug 1448439 - Add a pref to get APZ to use the Chrome fling physics on Android.

• browser.cache.disk.max_chunks_memory_usage
  Bug 1457084 - Increase max chunk memory usage limit,

• browser.cache.disk.max_priority_chunks_memory_usage
  Bug 1457084 - Increase max chunk memory usage limit,

• browser.cache.offline.insecure.enable
  Bug 1460478 - Remove support for AppCache in stable.

• browser.EULA.version
  Bug 1409054 - Remove code from the old about:home.

• browser.history_swipe_animation.disabled
  Bug 860493: Add pref to disable history swipe animations.

• browser.rights.3.shown
  Bug 1409054 - Remove code from the old about:home.

• browser.rights.version
  Bug 1409054 - Remove code from the old about:home.

• browser.safebrowsing.provider.mozilla.lists.base
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.safebrowsing.provider.mozilla.lists.base.description
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.safebrowsing.provider.mozilla.lists.base.name
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.safebrowsing.provider.mozilla.lists.content
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.safebrowsing.provider.mozilla.lists.content.description
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.safebrowsing.provider.mozilla.lists.content.name
  Bug 1457021 - Migrate the JS of Preferences::Blocklists to Fluent.

• browser.search.defaultenginename
  Bug 1352539 - Move default search engine to list.json.
  Bug 1417678 - New search defaults for browser and mobile.

• browser.search.defaultenginename.US
  Bug 1352539 - Move default search engine to list.json.
  Bug 1417678 - New search defaults for browser and mobile.

• browser.search.order.1
  Bug 1461345 - Move browser.search.order to list.json.

• browser.search.order.2
  Bug 1461345 - Move browser.search.order to list.json.

• browser.search.order.3
  Bug 1461345 - Move browser.search.order to list.json.

• browser.search.order.US.1
  Bug 1461345 - Move browser.search.order to list.json.
  Bug 1417678 - New search defaults for browser and mobile.

• browser.search.order.US.2
  Bug 1461345 - Move browser.search.order to list.json.
  Bug 1442738 - Update default search config.
  Bug 1417678 - New search defaults for browser and mobile.

• browser.security.newcerterrorpage.enabled
  Bug 1463748 - Fork and pref-off the new error pages

• browser.sessionstore.resuming_after_os_restart
  Bug 603903 - Part 2: restore session when restarted by Windows

• browser.snapshots.limit
  Bug 860493: Add pref to disable history swipe animations.

• browser.tabs.multiselect
  Bug 1458010 - Add ability to select multiple tabs using Ctrl/Cmd.

• browser.tabs.remote.tabCacheSize
  Bug 1465106 - Disable tab layer cache
  Bug 1176019 - Cache layers of background tabs

• browser.urlbar.autoFill.typed
  Bug 1239708: Improve awesomebar autofill. Part 3: Front-end changes.

• device.sensors.ambientLight.enabled
  Bug 1462308 - Disable all Device Sensor events except orientation by default for stable.

• device.sensors.proximity.enabled
  Bug 1462308 - Disable all Device Sensor events except orientation by default for stable.

• devtools.devedition.promo.enabled
  Bug 1463924 - Remove Dev. Edition promo doorhanger.

• devtools.devedition.promo.shown
  Bug 1463924 - Remove Dev. Edition promo doorhanger.

• devtools.devedition.promo.url
  Bug 1463924 - Remove Dev. Edition promo doorhanger.

• devtools.inspector.fonthighlighter.enabled
  Bug 1440855 - New font text-run highlighter used from the font inspector;r=gl

• devtools.inspector.show-three-pane-tooltip
  Bug 1467564 - Only show the 3 pane tooltip in release or beta.
  Bug 1464233 - Allow 3 pane inspector to ride the trains.
  Bug 1433718 - Enable 3 pane inspector in nightly and make unit tests pass.
  Bug 1433718 - Make unit tests pass with the 3 pane inspector on in nightly.
  Bug 1446944 - Provide onboarding tooltip for the 3 pane inspector feature.

• devtools.inspector.three-pane-enabled
  Bug 1464233 - Allow 3 pane inspector to ride the trains.
  Bug 1433718 - Enable 3 pane inspector in nightly and make unit tests pass.
  Bug 1433718 - Make unit tests pass with the 3 pane inspector on in nightly.

• devtools.inspector.three-pane-first-run
  Bug 1468495 - Reset the inspector widths for the first run of 3 pane inspector.

• devtools.inspector.three-pane-toggle
  Bug 1462451 - Remove checks for the 3 pane toggle button.

• devtools.new-animationinspector.enabled
  Bug 1470807: Enable new animation inspector on Beta and Release channel.

• devtools.telemetry.tools.opened.version
  Bug 1296723 - Remove logOncePerBrowserVersion telemetry functions and probes

• devtools.toolbar.enabled
  Bug 1461970 - Removing DeveloperToolbar, its menu, its pref and everything using gDevToolsBrowser.getDeveloperToolbar.

• devtools.toolbox.previousHost
  Bug 1192642 - Add a left host type for the toolbox.

• devtools.webconsole.autoMultiline
  Bug 1464476 - Remove devtools.webconsole.autoMultiline preference;

• devtools.webconsole.jsterm.codeMirror
  Bug 1463409 - Add a preference to enable CodeMirror-powered jsterm;

• dom.clearSiteData.enabled
  Bug 1268889 - Implement Clear-Site-Data header - part 2 - pref,

• dom.ipc.plugins.sandbox-level.flash
  Bug 1366256 - Part 1: Promote Windows plugin process sandbox to level 3.
  Bug 1433577 - [Mac] Enable sandboxing for the Flash NPAPI plugin process on Nightly;
  Bug 1366256: Part 1 - Promote Windows plugin process sandbox to level 3
  Bug 1444291 - Part 3 - Add read access to the Mac Flash sandbox, support sandbox levels

• dom.keyboardevent.dispatch_during_composition
  Bug 1446401 - Start to dispatch "keydown" event and "keyup" event even during in composition in Nightly and early Beta

• dom.mutation-events.cssom.disabled
  Bug 1460295 - Don't dispatch mutation event for style attribute change from CSSOM.

• dom.registerContentHandler.enabled
  Bug 1460481 - Disable registerContentHandler from stable releases.

• dom.registerProtocolHandler.insecure.enabled
  Bug 1460506 - Restrict registerProtocolHandler over insecure connections in stable releases.

• dom.serviceWorkers.parent_intercept
  Bug 1469024 Define service worker parent intercept pref in StaticPrefList and read it once at startup.

• dom.webcomponents.shadowdom.report_usage
  Bug 1461278 - Print a note to the web console when a web site is using shadow DOM (v1), preffed off by default,

• extensions.geckoProfiler.getSymbolRules
  Bug 1461056 - Remove the "remoteBreakpad" symbol rule, because it's no longer needed.
  Bug 1441051 - Automatically invoke dump_syms.exe on Windows when the profiler asks for symbol tables.

• extensions.geckoProfiler.symbols.url
  Bug 1461056 - Remove unneeded function urlForSymFile.

• extensions.minCompatibleAppVersion
  Bug 1461216: Remove minCompatible*Version preferences.

• extensions.minCompatiblePlatformVersion
  Bug 1461216: Remove minCompatible*Version preferences.

• extensions.systemAddon.update.enabled
  Bug 1428459 - Divorce system add-ons from app.update prefs

• extensions.webextensions.ExtensionStorageIDB.enabled
  Bug 1406181 - Add ExtensionStorageIDB JSM module.

• gfx.webrender.async-scene-build
  Bug 1452845 - Turn on async scene building by default.
  Bug 1391318 - Automatically enable async scene building with webrender.all.
  Bug 1451469 - Complete hooking up of the sampler thread.

• gfx.webrender.debug.echo-driver-messages
  Bug 1469041 - Expose WebRender's frame/scene debug indicators.

• gfx.webrender.debug.new-frame-indicator
  Bug 1469041 - Expose WebRender's frame/scene debug indicators.

• gfx.webrender.debug.new-scene-indicator
  Bug 1469041 - Expose WebRender's frame/scene debug indicators.

• gfx.webrender.hit-test
  Bug 1436409 - Remove gecko/APZ hit-test codepath from WebRenderCommandBuilder.

• gfx.webrender.program-binary-disk
  Bug 1418202 - Serialize ProgramBinary to/from blob/disk

• hangmonitor.timeout
  Bug 1448040 - Remove HangMonitor/ChromeHangs

• image.animated.decode-on-demand.threshold-kb
  Bug 1460258 - Re-enable discarding of animated image frames.
  Bug 1454824 - Disable discarding of animated image frames due to high CPU consumption.

• image.animated.resume-from-last-displayed
  Bug 1454149 - Do not advance animated images which are not displayed.

• image.mem.max_decoded_image_kb
  Bug 1335148 - Part 4: Remove unused max_decoded_image_kb pref.

• io.activity.intervalMilliseconds
  Bug 1447931 - NetworkActivity becomes IOActivity -

• javascript.options.array_prototype_values
  Bug 1469540 - Remove option to disable Array.prototype.values.

• layers.enable-tiles-if-skia-pomtp
  Bug 1454978 - Enable tiled parallel OMTP when we are using skia on windows on nightly.
  Bug 1454978 - Cleanup tiling prefs in all.js.
  Bug 1438551 - Add a pref for enabling tiles when we are using skia with parallel painting.

• layout.accessiblecaret.allow_script_change_updates
  Bug 1463576 - 1. Add layout.accessiblecaret.script_change_update_mode pref;

• layout.accessiblecaret.script_change_update_mode
  Bug 1463576 - 1. Add layout.accessiblecaret.script_change_update_mode pref;

• layout.css.getPropertyCSSValue.enabled
  Bug 1408301: Remove getPropertyCSSValue.
  Bug 1461092 - Unship GetPropertyCSSValue in Firefox 61.
  Bug 1448415: Hide getPropertyCSSValue on nightly.

• layout.css.moz-document.url-prefix-hack.enabled
  Bug 1448225 - Convert StylePrefs to StaticPrefs.
  Bug 1446470: Add another pref to control the url-prefix hack.

• layout.css.scrollbar-colors.enabled
  Bug 1460456 part 3 - Add scrollbar-{face,track}-color properties.

• layout.css.shape-outside.enabled
  Bug 1457297: Turn pref layout.css.shape-outside.enabled on by default for all channels.
  Bug 1353631 Part 1: Set preference default to true in Nightly for layout.css.shape-outside.enabled.
  Bug 1353631: Set preference default to true in Nightly for layout.css.shape-outside.enabled.

• layout.css.text-combine-upright-digits.enabled
  Bug 1457373 - Remove text-combine-upright digits option -

• layout.css.webkit-appearance.enabled
  Bug 1429713 part 1 - Add a -webkit-appearance alias for -moz-appearance (behind a pref).

• layout.css.xul-display-values.content.enabled
  Bug 1288572: Hide -moz- display values from content behind a pref.

• layout.display-list.retain
  Bug 1467530 - Disable retained display lists by default for Firefox 61.

• layout.event-regions.enabled
  Bug 1436409 - Remove the layout.event-regions.enabled pref and bake it in as false everywhere.

• network.activity.intervalMilliseconds
  Bug 1447931 - NetworkActivity becomes IOActivity -

• network.cookie.maxNumber
  Bug 1460251 - Up cookie limit to 180 per host and expose prefs.

• network.cookie.maxPerHost
  Bug 1460251 - Up cookie limit to 180 per host and expose prefs.

• network.dir.format
  Bug 833098: Part 1 - Remove dead code in xpfe directory viewer.

• network.sts.poll_busy_wait_period
  Bug 1442178 - Do a busy wait of socket poll() shortly after network change detection,

• network.sts.poll_busy_wait_period_timeout
  Bug 1442178 - Do a busy wait of socket poll() shortly after network change detection,

• network.sts.pollable_event_timeout
  Bug 1442178 - Repair broken socket polling wakeup mechanism after a network change to prevent long load hangs,

• network.trr.blacklist-duration
  bug 1470005 - change default TRR blacklist duration to 60 seconds
  bug 1451011 - expire TRR blacklist entries after 20 minutes by default

• plugin.java.mime
  Bug 1461243 - Part 5: Stub out obsolete DOM API navigator.javaEnabled(). r=jimm

• plugin.state.java
  Bug 1461243 - Part 5: Stub out obsolete DOM API navigator.javaEnabled(). r=jimm

• print.font-variations-as-paths
  Bug 1464094 - print font variations as paths for PDF/PS output.

• privacy.trackingprotection.storagerestriction.enabled
  Bug 1461921 - Block storage access for third-parties on the tracking protection list - part 1 - Pref and Blocking check,

• security.OCSP.GET.enabled
  bug 1456489 - prevent making OCSP requests on the main thread

• security.pki.name_matching_mode
  Bug 1463936 - Set default security.pki.name_matching_mode to enforce (3) for all builds.
  Bug 1461373 - Set BRNameMatchingPolicy to "Enforce" for Nightly

• toolkit.winRegisterApplicationRestart
  Bug 603903 - Part 1: add RegisterApplicationRestart

[earthlng]

• pref("privacy.trackingprotection.storagerestriction.enabled", false); - in FF63 they 1st renamed it to privacy.3rdpartystorage.enabled but now removed the pref again and merged it with network.cookie.cookieBehavior. Best to ignore for FF62 IMO, because otherwise we have it in the user.js for 1 version and then have to move it to 9999.
  We can list it at the top of this issue "for visibility" for those who want to try it. (but I'm not sure if it needs TP enabled or if it's even fully ready yet in FF62)
• pref("extensions.webextensions.ExtensionStorageIDB.enabled", false); - there have already been a couple of issues identified with this (+ fixed in latest FF63) and it's best to wait until they enable it by default IMO. I suggest we move it to "ignore"

[earthlng]

users who block all cookies can't use TP

You can use TP and block all cookies just fine AFAIK. ATM there are 2 kinds of TP, active and passive. Active TP will completely block requests (which could theoretically also try to set a cookie) while passive TP will just prevent the cookie from being set. At least that's how I think it works.

Seems like a nice option for people who don't want to allow everything (0=allow all cookies and site data) but for whom 1st-party-only breaks too many of their favorite sites.
Maybe one day mozilla will make it the new default value instead of 0.

[earthlng]

network.cookie.cookieBehavior=0 - you block all cookies

0 = you ALLOW all cookies

FF63 will have a new option available cookieBehavior=4 = allow all except from tracking resources

[earthlng]

They'll set fallback-limit pref to TLS 1.3 by default for Firefox 62 and IMO we can just remove that pref from the user.js because it's not necessary to enforce the default. plus: "We're on the road to remove that code"

[earthlng]

moved from new to ignore -> new:

• all the activity-stream shit since it's still possible to delete the system addon. FF63+ will have it built-in and we'll deal with it then
• pref("browser.security.newcerterrorpage.enabled", false); - wait until they enable it by default
• pref("browser.tabs.multiselect", false); - not privacy/security related
• pref("devtools.inspector.fonthighlighter.enabled", false);
• pref("devtools.inspector.three-pane-first-run", true);
• pref("dom.webcomponents.shadowdom.report_usage", false);
  probably nightly-only. We'll see it in the diffs if they ever change it to true in beta or release
• pref("extensions.webextensions.ExtensionStorageIDB.enabled", false); - see my comment
• pref("privacy.trackingprotection.storagerestriction.enabled", false); - see my comment

moved from changed to ignore -> changed:

• pref("apz.android.chrome_fling_physics.enabled", true); // prev: false - Android. IDGAF
• pref("dom.ipc.plugins.sandbox-level.flash", 3); // prev: 2
  Flash. IDGAF. higher sandbox-level is always welcome but we don't need to enforce it or anything
• pref("dom.registerContentHandler.enabled", false); // prev: true
  navigator.registerContentHandler() has been removed 👍
• pref("dom.registerProtocolHandler.insecure.enabled", false); // prev: true
  navigator.registerProtocolHandler() can no longer be used on insecure sites 👍
• pref("network.http.throttle.version", 1); // prev: 2
• pref("security.pki.name_matching_mode", 3); // prev: 1
  more restrictive hostname matching in TLS certificates 👍

some of the remaining changed prefs might be beta-only, let's wait until 62-release is out

[earthlng]

62.0 changes since 62b20

new

pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts", false); // true in 62b20
pref("services.sync.engine.bookmarks.validation.enabled", true);
pref("services.sync.engine.passwords.validation.enabled", true);

removed

pref("geo.provider.ms-windows-location", false);

changed

pref("app.update.channel", "beta"); // prev: "release"
pref("app.update.url.details", "https://www.mozilla.org/%LOCALE%/firefox/beta/notes"); // prev: "https://www.mozilla.org/%LOCALE%/firefox/notes"
pref("app.update.url.manual", "https://www.mozilla.org/firefox/beta"); // prev: "https://www.mozilla.org/firefox/"
pref("browser.newtabpage.activity-stream.telemetry.ut.events", true); // prev: false
pref("dom.keyboardevent.dispatch_during_composition", true); // prev: false
pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%"); // prev: "https://www.googleapis.com/geolocation/v1/geolocate?key=%GOOGLE_API_KEY%"
pref("layout.css.moz-document.url-prefix-hack.enabled", false); // prev: true
pref("network.tcp.tcp_fastopen_enable", true); // prev: false
pref("toolkit.telemetry.enabled", true); // prev: false

--- updated 1st post

[earthlng]

https://bugzilla.mozilla.org/show_bug.cgi?id=603903#c69

... This feature is currently limited to Windows, though it may be extended to macOS later (in bug 1326181).

Firefox will automatically restore your tabs after Windows OS reboot. To disable this feature, set the "toolkit.winRegisterApplicationRestart" pref to false.

browser.sessionstore.resuming_after_os_restart is used internally and toggled back and forth automatically -> moved to ignore

also Content loads and runs before user has logged in but it might be a Windows 10 problem only

[earthlng]

pdfjs: https://github.com/mozilla/pdf.js/pull/9208

[earthlng]

dom.registerContentHandler.enabled & dom.registerProtocolHandler.insecure.enabled .. both previously true - shouldn't we add these for ESR60 users? or were they also flipped there?

no they were not flipped in ESR60.
dom.registerContentHandler.enabled isn't listed under "Privacy & Security" in Firefox 62 Site Compatibility so IDK if we need that.
But ESR60 users might also want user_pref("layout.css.moz-document.content.enabled", false); "since it could be used by attackers for CSS injection to steal private data in the URL of third-party sites."

[earthlng]

can't find the two pdfjs.*ModeOnLoad on DXR

https://dxr.mozilla.org/mozilla-beta/search?q=scrollModeOnLoad
https://dxr.mozilla.org/mozilla-beta/search?q=spreadModeOnLoad

looks like DXR is lacking behind a bit and beta hasn't been merged to release etc.

[earthlng]

I'd say we don't add stuff just for ESR60 users. They know they won't get non-critical updates.
There was a good reason to stick with ESR52 for the legacy extension support but IDK why anyone would choose ESR60 over release, beta or nightly. And this user.js was always made for Release anyway.
The rest under new and changed can be ignored as well IMO.
Add toolkit.winRegisterApplicationRestart if you want and then we can close this

[earthlng]

well both the register*Handler APIs are behind prompts anyway, fe see https://mdn.mozillademos.org/files/9683/protocolregister.png and the problem with disabling the moz-document css rule in ESR60 is that the exception which prevents most or all of the breakage landed in 61 and wasn't backported.

[earthlng]

No we don't need to do anything, no warning no cleanup no nothing. ESR users can continue to use the latest master and just activate the ESR60 deprecated part with the one-char switch.
There's probably not a lot of stuff that we'll change in terms of existing prefs anyway, mostly we'll add new prefs that won't exist in ESR or remove old prefs which they can re-enable in 9999

[earthlng]

#463 (comment)

lets add toolkit.winRegisterApplicationRestart somewhere and set it to false and active. It could be pretty annoying when content loads and runs before user has logged in

[earthlng]

^^ that's because of pref("browser.startup.blankWindow", true); // prev: false. It has that problem when RFP is enabled

[earthlng]

blankWindow: https://bugzilla.mozilla.org/show_bug.cgi?id=1448423

toolkit.winRegisterApplicationRestart: definitely not 0001. /*** 0100: STARTUP ***/ or maybe under MISC, IDK.

[earthlng]

"disable automatically restoring your Firefox session after OS restarts (FF61.0.2+)"
"As of FF62 it's Windows-only but support for MacOS is also planned"

[earthlng]

blankWindow: once bug 1448423 gets fixed we can remove the pref again - add the link for easy reference?

winRegisterApplicationRestart:

whats with the 61.0.2+ - did it land in a dot release?

https://www.mozilla.org/en-US/firefox/61.0.2/releasenotes/

Adds support for automatically restoring your Firefox session after Windows restarts. Currently, this feature is not enabled by default for most users, but will be gradually enabled over the coming weeks.

(61.0.2+) or (FF62+) - whatever you prefer is fine