Firefox suddenly stopped working even after restarting and reinstalling

Firefox suddenly stopped loading pages. (No updates or changes were made from when it was working to when it stopped.) When I first encountered the problem after closing firefox, it didn’t seem possible to reopen it (something was not shutting down), but after force stopping the process, I tried again without any suggess.

No errors are shown, when trying to go to a new page the “loading” animation (moving dot where favicon should be) is shown in the tab bar. Other browsers and network activities work fine. I have tried uninstalling and reinstalling, deleted my ~/.mozilla files, and reinstalling, and finally I have tried uninstalling and then installing the flatpak to see if that helps. Nope.

I have restarted the computer several times with no change.

I have pasted the browser console logs> i’m not sure if the errors about the directories are the problem or how to fix them. The application starts and renders the Welcome to Firefox page and the Firefox privacy notice.

Any help to resolve or suggestions on where to post the issue are appreciated.

Installed with DNF

1642062032740	addons.xpi	WARN	Checking /usr/lib64/firefox/distribution/extensions for addons
1642062032831	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: resource://pdf.js/
1642062032831	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: about:reader*
[Exception... "Component returned failure code: 0x80004001 (NS_ERROR_NOT_IMPLEMENTED) [nsIAppStartup.secondsSinceLastOSRestart]"  nsresult: "0x80004001 (NS_ERROR_NOT_IMPLEMENTED)"  location: "JS frame :: resource:///modules/BrowserGlue.jsm :: _collectStartupConditionsTelemetry :: line 1575"  data: no] BrowserGlue.jsm:1575:9
SearchSettings: get: No settings file exists, new profile? DOMException: Could not open the file at /home/mymuser/.mozilla/firefox/sona3f2b.default-release/search.json.mozlz4 SearchSettings.jsm:108:18
Error: Can't find profile directory. 4 XULStore.jsm:66:15
telemetry.state_file_read_errors - Unknown scalar.
telemetry.generated_new_client_id - Unknown scalar.
Error: Could not get children of file(/home/mymuser/.mozilla/firefox/sona3f2b.default-release/thumbnails) because it does not exist PromiseWorker.jsm:106
Cc[("@mozilla.org/profile/migrator;1?app=browser&type=" + aKey)] is undefined MigrationUtils.jsm:734
[Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFileInputStream.init]"  nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"  location: "JS frame :: resource://gre/modules/ContextualIdentityService.jsm :: ensureDataReady :: line 406"  data: no] ContextualIdentityService.jsm:406:19
Error: Can't find profile directory. 2 XULStore.jsm:66:15
attribute_error: normandy.country Targeting.jsm:131
NetworkError when attempting to fetch resource. Targeting.jsm:154:16
1642062037959	app.normandy.recipe-runner	ERROR	Error checking filter for "Comcast Steering Rollout". Filter: [(normandy.channel in ["release"]) && (normandy.country in ["US"]) && ([normandy.userId,"doh-comcast-rollout"]|bucketSample(0,10000,10000)) && ((env.version|versionCompare("78.!")>=0)&&(env.version|versionCompare("88.*")<0))]. Error: "TypeError: NetworkError when attempting to fetch resource." Log.jsm:723
Key event not available on some keyboard layouts: key=“r” modifiers=“accel,alt” id=“key_toggleReaderMode” browser.xhtml
Key event not available on some keyboard layouts: key=“i” modifiers=“accel,alt,shift” id=“key_browserToolbox” browser.xhtml
The Web Console logging API (console.log, console.info, console.warn, console.error) has been disabled by a script on this page.
getScreenshot(https://start.fedoraproject.org/) failed: Error: page-thumbnail:error Screenshots.jsm:79
    getScreenshotForURL resource://activity-stream/lib/Screenshots.jsm:79
    AsyncFunctionThrow self-hosted:700

Flatpak

1642062638951	addons.xpi	WARN	Checking /app/lib64/firefox/distribution/extensions for addons
1642062639074	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: resource://pdf.js/
1642062639075	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: about:reader*
[Exception... "Component returned failure code: 0x80004001 (NS_ERROR_NOT_IMPLEMENTED) [nsIAppStartup.secondsSinceLastOSRestart]"  nsresult: "0x80004001 (NS_ERROR_NOT_IMPLEMENTED)"  location: "JS frame :: resource:///modules/BrowserGlue.jsm :: _collectStartupConditionsTelemetry :: line 1575"  data: no] BrowserGlue.jsm:1575:9
SearchSettings: get: No settings file exists, new profile? DOMException: Could not open the file at /home/mymuser/.mozilla/firefox/47n3nu5k.default-release/search.json.mozlz4 SearchSettings.jsm:108:18
Error: Can't find profile directory. 4 XULStore.jsm:66:15
    load resource://gre/modules/XULStore.jsm:66
    XULStore resource://gre/modules/XULStore.jsm:24
telemetry.state_file_read_errors - Unknown scalar.
telemetry.generated_new_client_id - Unknown scalar.
Error: Could not get children of file(/home/mymuser/.mozilla/firefox/47n3nu5k.default-release/thumbnails) because it does not exist PromiseWorker.jsm:106
Cc[("@mozilla.org/profile/migrator;1?app=browser&type=" + aKey)] is undefined MigrationUtils.jsm:734
[Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFileInputStream.init]"  nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"  location: "JS frame :: resource://gre/modules/ContextualIdentityService.jsm :: ensureDataReady :: line 406"  data: no] ContextualIdentityService.jsm:406:19
Error: Can't find profile directory. 2 XULStore.jsm:66:15
Key event not available on some keyboard layouts: key=“r” modifiers=“accel,alt” id=“key_toggleReaderMode” browser.xhtml
Key event not available on some keyboard layouts: key=“i” modifiers=“accel,alt,shift” id=“key_browserToolbox” browser.xhtml
getScreenshot(https://start.fedoraproject.org/) failed: Error: page-thumbnail:error Screenshots.jsm:79
    getScreenshotForURL resource://activity-stream/lib/Screenshots.jsm:79
    AsyncFunctionThrow self-hosted:700
The Web Console logging API (console.log, console.info, console.warn, console.error) has been disabled by a script on this page.

I have the same problem.

Just did dnf update/reboot and now firefox doesn’t load any pages anymore.
Chrome still works fine.
Running firefox --safe-mode does also not help.
Whatever page i visit it just says Transferring data from … forever.
Also I am not in offline mode.
I tried also removing .mozilla folder, but that does not help either.

I am on Fedora Linux 35 (Workstation Edition) 64-bit under Wayland, Firefox 95.0.2.

i have the same troubles

Ok, I see on reddit that this seems to be a firefox issue.

The suggested solution is to set
network.http.http3.enabled to false from about:config. Then restart firefox. Seems to work for me.

3 Likes

FYI

Firefox 96.0 hangs after a while - loses connectivity
https://bugzilla.redhat.com/show_bug.cgi?id=2040189

upstream bug:
Infinite loop in HTTP3 hangs socket thread

3 Likes

This should no longer be needed. Don’t forget to change the value back to default.

2 Likes