Crash in [@ java.lang.NullPointerException: at org.mozilla.fenix.components.toolbar.DefaultToolbarIntegration.<init>(ToolbarIntegration.kt:16)] on Kindle devices

[plwt]

User reporting crash in SUMO under https://support.mozilla.org/en-US/questions/1315624

Sentry link with crash logs: https://sentry.prod.mozaws.net/operations/firefox/issues/10023896/?query=is%3Aunresolved%20NullPointerException%20toolbar

Device information

• Android device: Amazon Fire HD 10 2019, Amazon Android 7.3.1.6
• Fenix version: 83 (taken from Kitsune), installed from GPS

┆Issue is synchronized with this Jira Task

[yoasif]

Other reports say that this is due to the "Follow device theme" setting: https://www.reddit.com/r/firefox/comments/k45117/if_firefox_is_crashing_on_your_kindle_fire_hd_set/

[kbrosnan]

Crash report: https://crash-stats.mozilla.org/report/index/da2d9181-dbf8-489b-b934-27cca0201130

Java stack trace:

java.lang.NullPointerException
	at org.mozilla.fenix.components.toolbar.DefaultToolbarIntegration.<init>(ToolbarIntegration.kt:16)
	at org.mozilla.fenix.components.toolbar.BrowserToolbarView.<init>(BrowserToolbarView.kt:88)
	at org.mozilla.fenix.browser.BaseBrowserFragment.initializeUI$app_nightly(BaseBrowserFragment.kt:54)
	at org.mozilla.fenix.browser.BrowserFragment.initializeUI$app_nightly(BrowserFragment.kt:3)
	at org.mozilla.fenix.browser.BaseBrowserFragment.onViewCreated(BaseBrowserFragment.kt:1)
	at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:21)
	at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:25)
	at androidx.fragment.app.FragmentManager.addAddedFragments(FragmentManager.java:5)
	at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:53)
	at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:11)
	at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:12)
	at androidx.fragment.app.FragmentManager$4.run(FragmentManager.java:1)
	at android.os.Handler.handleCallback(Handler.java:873)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:193)
	at android.app.ActivityThread.main(ActivityThread.java:6740)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

[mcarare]

No devices to test this on, but we should follow sentry reports to see if any crashes occur with Fenix versions that include this fix.