PWAs do not load with LibreWolf

[FDDTheLucario]

Description

Any PWA using the librewolf-135.0.1-1-macos-arm64 version of LibreWolf results in a blank page.

Steps to Reproduce

1. Install the LibreWolf runtime using the instructions provided on the website.
2. Add a PWA
3. Attempt to launch it
4. See blank screen

Additional Information

Errors from the JavaScript console:

TypeError: this._cacheEntry is null
[BrowserGlue.sys.mjs:6651:5](resource:///modules/BrowserGlue.sys.mjs)
    clearCache resource:///modules/BrowserGlue.sys.mjs:6651
    observe resource:///modules/BrowserGlue.sys.mjs:6883
    <anonymous> resource://pwa/boot.sys.mjs:336
Error: Failed to load chrome://pocket/content/pktApi.sys.mjs [TelemetryFeed.sys.mjs:1601:33](resource://activity-stream/lib/TelemetryFeed.sys.mjs)
SearchEngineSelector: Received empty search configuration! [SearchEngineSelector.sys.mjs:195:23](resource://gre/modules/SearchEngineSelector.sys.mjs)
    _getConfiguration resource://gre/modules/SearchEngineSelector.sys.mjs:195
this._browser.frameLoader.remoteTab is null 4 [RemoteWebNavigation.sys.mjs:29:5](resource://gre/modules/RemoteWebNavigation.sys.mjs)
    maybeCancelContentJSExecution resource://gre/modules/RemoteWebNavigation.sys.mjs:29
    fixupAndLoadURIString resource://gre/modules/RemoteWebNavigation.sys.mjs:159
    fixupAndLoadURIString chrome://global/content/elements/browser-custom-element.js:983
    _wrapURIChangeCall chrome://global/content/elements/browser-custom-element.js:907
    fixupAndLoadURIString chrome://global/content/elements/browser-custom-element.js:982
    build chrome://extensions/content/parent/ext-backgroundPage.js:136
    AsyncFunctionNext self-hosted:800
this._browser.frameLoader.remoteTab is null [RemoteWebNavigation.sys.mjs:29:5](resource://gre/modules/RemoteWebNavigation.sys.mjs)
    maybeCancelContentJSExecution resource://gre/modules/RemoteWebNavigation.sys.mjs:29
    fixupAndLoadURIString resource://gre/modules/RemoteWebNavigation.sys.mjs:159
    fixupAndLoadURIString chrome://global/content/elements/browser-custom-element.js:983
    _wrapURIChangeCall chrome://global/content/elements/browser-custom-element.js:907
    fixupAndLoadURIString chrome://global/content/elements/browser-custom-element.js:982
    build chrome://extensions/content/parent/ext-backgroundPage.js:136
    InterpretGeneratorResume self-hosted:1413
    AsyncFunctionNext self-hosted:800
TypeError: messageManager is null
5 [ExtensionParent.sys.mjs:1906:5](resource://gre/modules/ExtensionParent.sys.mjs)
SearchEngineSelector: Received empty search configuration! [SearchEngineSelector.sys.mjs:195:23](resource://gre/modules/SearchEngineSelector.sys.mjs)
    _getConfiguration resource://gre/modules/SearchEngineSelector.sys.mjs:195
SearchService: #init: failure initializing search: NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings
    getEngineConfiguration resource://gre/modules/SearchEngineSelector.sys.mjs:88
[SearchService.sys.mjs:1396:23](resource://gre/modules/SearchService.sys.mjs)
    #init resource://gre/modules/SearchService.sys.mjs:1396
NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings 3 [SearchEngineSelector.sys.mjs:88](resource://gre/modules/SearchEngineSelector.sys.mjs)
Uncaught (in promise) NS_ERROR_UNEXPECTED: Failed to get engine data from Remote Settings
    getEngineConfiguration resource://gre/modules/SearchEngineSelector.sys.mjs:88
[SearchEngineSelector.sys.mjs:88](resource://gre/modules/SearchEngineSelector.sys.mjs)
SearchSettings: _write: Could not write to settings file: Error: cannot write without any engine.
    _write resource://gre/modules/SearchSettings.sys.mjs:280
    task resource://gre/modules/SearchSettings.sys.mjs:211
    _runTask resource://gre/modules/DeferredTask.sys.mjs:341
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:312
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:331
    callback resource://gre/modules/DeferredTask.sys.mjs:179
[SearchSettings.sys.mjs:318:23](resource://gre/modules/SearchSettings.sys.mjs)
    _write resource://gre/modules/SearchSettings.sys.mjs:318
    task resource://gre/modules/SearchSettings.sys.mjs:211
    _runTask resource://gre/modules/DeferredTask.sys.mjs:341
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:312
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:331
    callback resource://gre/modules/DeferredTask.sys.mjs:179
AboutHomeStartupCache: requestCache called with no _procManager! [BrowserGlue.sys.mjs:6391:16](resource:///modules/BrowserGlue.sys.mjs)
    requestCache resource:///modules/BrowserGlue.sys.mjs:6391
    cacheNow resource:///modules/BrowserGlue.sys.mjs:6346
    _cacheTask resource:///modules/BrowserGlue.sys.mjs:6191
    _runTask resource://gre/modules/DeferredTask.sys.mjs:341
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:312
    _timerCallback resource://gre/modules/DeferredTask.sys.mjs:331
    callback resource://gre/modules/DeferredTask.sys.mjs:179
Download attempt to RS collection "undefined" was blocked. [RemoteSettingsClient.sys.mjs:232:13](resource://services-settings/RemoteSettingsClient.sys.mjs)
    download resource://services-settings/RemoteSettingsClient.sys.mjs:232
    _getMLBFData resource://gre/modules/Blocklist.sys.mjs:931
    _fetchMLBF resource://gre/modules/Blocklist.sys.mjs:951
    updatePromise resource://gre/modules/Blocklist.sys.mjs:1041
    InterpretGeneratorResume self-hosted:1413
    AsyncFunctionNext self-hosted:800
Error: Polling for changes failed: isCollectionAllowed is not defined.
    pollChanges resource://services-settings/remote-settings.sys.mjs:430

Warnings from the JavaScript console:

unreachable code after return statement
[Utils.sys.mjs:57:3](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/url-parser-default-unknown-schemes-interventions" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/anti-tracking-url-decoration" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/query-stripping" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/fingerprinting-protection-overrides" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/hijack-blocklists" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/doh-providers" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/search-telemetry-v2" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/search-config-v2" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/search-config-overrides-v2" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/doh-config" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/search-config-v2" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "blocklists/gfx" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/message-groups" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/cfr" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/urlbar-persisted-search-terms" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "main/search-categorization" was blocked/filtered. 2 [Utils.sys.mjs:244:13](resource://services-settings/Utils.sys.mjs)
Connection attempt to RS collection "blocklists/addons-bloomfilters" was blocked/filtered.

Environment

• Operating system: macOS 15.3.1
• System architecture: ARM64
• Desktop environment:
• Installation method: Homebrew
• PWAsForFirefox extension version: 2.14.1
• PWAsForFirefox native version: 2.14.1
• PWAsForFirefox runtime version: LibreWolf 135.0.1-1
• Firefox version: LibreWolf 135.0.1-1

[filips123]

Please try to run "Patch profiles and runtime" again from the extension settings.

[FDDTheLucario]

I have done so several times with no result.

I've attached the respective log files after patching and including the DEBUG file.

firefoxpwa-stderr.log
firefoxpwa-stdout.log
firefoxpwa.log

[filips123]

Does it still happen for you? If so, please try it in a new web app profile. I've tried to reproduce it, but it works fine for me.