Firefox Support Forum

Hi,

My name is Julio. I'm from Brazil and i'm using Ububtu 18.04 LTS OS. After an update/upgrade routine firefox have started to crashing at startup. I've tried almost everything avaible on mozilla's support webpage (https://support.mozilla.org/pt-BR/kb/falhas-do-firefox-solucione-previna-e-obtenha-ajuda#w_peca-ajuda-para-solucionar-esta-falha). I've already removed manually the folder .mozilla (~/.mozilla) and tried a clean install using different ways: ubuntu repository, comand line (sudo apt install firefox), synaptic repository, downloading the firefox-89.0.tar.bz2 file on firefox webpage... and nothing have worked for me. I can't access the troubleshoot mode (the app crashes before that). When i ran firefox on comand line the outcome is:

ExceptionHandler::GenerateDump cloned child 12536 ExceptionHandler::WaitForContinueSignal waiting for continue signal... ExceptionHandler::SendContinueSignalToChild sent continue signal to child Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error.

Despite the information avaible on support webpage, i couldn't find a folder ~/.mozilla/firefox/Crash Reports/submitted. I've found just text files: LastCrash and submit.log (and another stuffs).

Follows the content of submit.log file:

[dom 06 jun 2021 23:10:29 -03] Crash report submitted successfully [dom 06 jun 2021 23:13:31 -03] Crash report submitted successfully [dom 06 jun 2021 23:16:23 -03] Crash report submitted successfully

And the content of LastCrash is:

1623033026

Could somebody help me, please?

I am running Firefox 87.0 on Ubuntu 21.04. I ran into some issues after an ubuntu update, where programs (even gnome-terminal) stopped loading all together after I boot into my system. I resolved it by forcing modprobe.blacklist=nouveau

Now my system can boot, and all other programs work fine. However, while my firefox opens up properly, it doesn't load any pages. Not even the Preferences and about:config page. If I remove all tabs, and open a new one, it would repeatly prompt me that Firefox needs to restart after update. Although restarting firefox does absolutely nothing.

I've tried creating new profiles, rebooting my system, completely removing and reinstalling firefox, nothing works.

I'm forced to install and use google chrome to ask for any suggestions, which, as you can see, works perfectly. Please save me from this hell.

In Firefox settings, Firefox new tab, and in these mozilla forums, my add-ons are disabled. Specifically Vimium, and I get this message when hovering over the Vimium icon: "Vimium is not running on this page.

Your browser does not run web extensions like Vimium on certain pages, usually for security reasons.

Unless your browser's developers change their policy, then unfortunately it is not possible to make Vimium (or any other web extension, for that matter) work on this page."

How can I enable this, and possibly all normally active add-ons in these pages?

I am running RHEL 7 and KDE4 with Firefox Nightly.

Firefox will not use KDE/Qt dialog boxes or system applications. For example: when showing the downloaded file list (Ctrl + Shift + y) and clicking the folder icon to show the file's location, firefox will freeze for several seconds before opening a window in Nautilus.

I have found discussions of this problem that span seemingly a decade without a simple step-by-step guide or an updated solution. Answers range from: editing =mimeinfo.cache= file for the =inode.directory= line, editing items in =defaults.list= file; setting the =GTK_USE_PORTAL=1= variable (somewhere) and then changing various =about:config= settings.

It's just confusing and exhausting tracking this down. Is it possible to get firefox to play nicely with KDE? Nothing that I have tried so far seems to have worked, but I'm honestly not sure where this setting would live, or magic bash incantation I need to run.

I know this seems minor, but having just switched back over to firefox to chrome, it seems very jarring seeing the GTK dialogs that do not play nicely with the rest of my desktop/workflow (i.e., I do not want to start a Gnome vs KDE flamewar, but rather: I'm used to dolphin and how it works and make heavy use of the embedded terminal within dolphin windows or drag&drop files into the Qt open dialog box which "drops" as a file path ... I have no idea what happens if I drag something into the GTK open dialog box)

Hello,

Firefox crashes on startup since version 89. The crash doesn't happen in Troubleshoot Mode.

I have tried everything following "The problem does not occur in Troubleshoot Mode" on this page, but it does not help. https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_the-problem-does-not-occur-in-troubleshoot-mode

Submitted Crash Reports Latest Report ID bp-c4c48207-a133-4c95-b337-0fd6b0210607

Thank you.

Since Firefox has been updated, the interface is completely unusable. The frame does not render properly. I can use Firefox only in safe-mode with the terminal. The new WebRender seems to be the problem.

What did I do then ?

• I entered apt purge firefox for full removal and reinstall -> Didn't work.
• I disabled in about:preferences hardware acceleration -> Didn't work
• Downgrade to Firefox 88 -> Worked.

I love the new interface and the new render process. But if I can't use it on my home workstation, things are going to be hard for me.

I added a screenshot to show the problem.

Thanks by advance !

Hi,

Firefox Rely is a great feature, which I use all the time, keep up the amazing work Firefox Team!

With that said, I've changed my email across my Firefox account, however there seems to be no way to update the email address that Relay forwards to (my old email address, which I no longer have). Is there a way to update?

Warm regards,

A very happy Firefox supporter

Hi. I've noticed similar messages like this after previous Firefox upgrades, but not for the latest.

My Firefox ESR was automatically updated to 78.11 on June 1, 2021. Since then I have not been able to access Amazon Prime. The error says:

Your web browser is missing a digital rights component.

In your web browser’s address bar, type about:addons, press Enter, and then on the left, click Plugins. For the Widevine Content Decryption Module, select Always Activate, and then refresh the video’s page and try watching the video. If the video doesn’t play, go back to Plugins, click the gear icon at the top of the page, and then click Check for Updates. When the plugins have updated, refresh the video’s page, and then try watching the video.

The suggestions get me no where. It is already on "Always Activate" and newer updates are available.

I tried uninstalling and reinstalling a early version, but this does not work either. I get a message at the top saying that "Firefox is installing components needed to plate the audio or video on this page. Please try again later." "Later" is apparently never.

Has any else had this issue? Any suggestions would be appreciated.

I don't want to deal with css/profile hacks just to fix this. I'm aware of https://www.reddit.com/r/FirefoxCSS/comments/nq2d0q/tabs_on_bottom_for_firefox_89/ But it'll break at some point. Maybe on FF 90/91/92 ...

After a crash, or even after shutting down the computer without closing all Firefox windows, Firefox will restore all the windows and tabs from the last session on restarting Firefox.

There can be many reasons why this may not be preferred behaviour for many users: Sometimes Firefox or the computer crashes because too many windows and tabs are open (and other applications running), killing Firefox may be a measure against malicious pages trying to hijack the browser, discarded pages after shutdown do not need to be restored, ...

So is there a way to make Firefox immediately ask whether to restore the session, like it already does after the second crash? This should actually be an option in the settings.

Firefox seems to have some threshold to leap to a larger font or a different font rendering scheme when adjusting the (Font) Scaling Factor in Ubuntu Tweaks. Nothing happens in Firefox windows until the Scaling Factor reaches 1.25 (125%) and then it jumps to render larger fonts everywhere. (next jump at 1.4) See the screenshots for the difference. What is this threshold? What is the actual parameter Firefox reacts to? Can I control it manually within Firefox?

This question has a rather convoluted background: I have replaced my 2560x1600 monitor with the 3840x1600 monitor and suddenly all Firefox windows render super ugly. It's not that they just look smaller due to to the smaller PPI but rather their font shape causes my eyes to tear. Previously the sensation was very soft. I do not know what that is but it seems it's not just the size. Could it be Firefox is using some information from the monitor that brings it to a sub-optimal font rendering/hinting/antialiasing behavior?

Increasing (Font) Scaling Factor to 1.25 via "Ubuntu (Gnome) Tweaks" app makes the fonts look acceptable again. Ubuntu Scaling Factor obviously also changes the size of other windows and their fonts. So I would rather keep the Scaling at 100% and just make sure the fonts are rendered in Firefox as before with the old monitor. I.e. I would like to remove this quality regression. The fonts can be controlled via Firefox properties but as expected this either increases all font sizes or doesn't work for proprietary fonts supplied by web pages (min font size). There should be a better solution than tweaking each font individually. The fact that the fonts are suddenly rendered acceptably again after the Scaling Factor reaches 1.25 makes me think that there may be some threshold in Firefox that makes it use different rendering scheme, mechanism or such. After 1.25 nothing happens until Scaling Factor reaches 1.4, then the font increases again. So can I just make Firefox render fonts as when scaling is at 1.25 but with the actual scaling factor at 1.0?

Apart from the overall size/resolution the monitors (old Samsung 305T vs. new Dell u3821dw) have different pixel pitch 0.2505 mm, PPI 101 (old) vs. 0.22908 and PPI 110,87 (new). Can this this be the root cause of the ugly fonts? So is there maybe a different parameter or setting to tell Firefox to render fonts regardless the higher PPI or lower pixel pitch?

I would expect everything to look just a bit smaller due to a smaller pixel pitch, but instead the fonts are rendered completely different and I can't find the setting that would fix that.

Just FYI I have been playing with these settings: Firefox: - Default Zoom 120% - Check Zoom Text Only - Minimal font size - layout.css.devPixelsPerPx 1 - gfx.font_rendering.cleartype_params.force_gdi_classic_max_size 100 Ubuntu: - Scaling Factor - System Fonts

I'm on Ubuntu 18.04 using Firefox 89.0 Ubuntu canonical-1.0 .

hello since update of newtest version of firefox 89.0 (64-Bit) the browser is freeze and i receive message "do you will wait or close the browser". When i press wait so the windows is reload and ask if i will do wait or close firefox. I have only possibility to close firefox. The problem is all time. When i have chance i can use firefox 2-3 hours without problems. Many time i open Firefox after 5 minutes its freeze.

Whats happen? before i have do make update not problems....

My System: Ubuntu 18.04.5 LTS with 89.0 (64-Bit) Firefox.

I am using Firefox on Linux (Ubuntu 20.10) to work from home over OpenVPN. Recently the VPN configuration was changed to use split tunneling to improve our internet connection. Since then I have had several DNS resolving issues in Firefox.

We use an on premise DNS server as an alternative to `localhost` domain names so we can access other developers' environments and so a few services can do the same. Our URL structure is like projectname.[optional personal identifier.]localhost.[type].nl. Without the [optional personal identifier], or when nothing is configured for it, the ip address is 127.0.0.1.

In Linux' OpenVPN configuration I have "Use this connection only for resource on its network" enabled for IPv4 and IPv6 is disabled (to benefit from split tunneling). With that enabled Firefox usually fails to resolve such development hostnames.

- As far as I know I do not have DoH enabled (and the about:networking log further down tells so too). - I do have `dnsmasq` enabled (with configuration for the above domain formats to route to 127.0.0.1 also) in an attempt to fix some issues before the split tunneling was configured correctly. And in an attempt to try and get Firefox to handle these DNS resolving issues. - `dig` on the command line for the same domain works just fine. - Adding hostnames to /etc/hosts works. But that's becoming a chore, working on dozens of projects over months.

Why is Firefox failing to resolve such domain names? Should I just create a Bugzilla issue?

I created a log with about:networking set to `timestamp,nsHostResolver:5`:

[Parent 5337: Main Thread]: I/Logger Flushing old log files 2021-06-09 07:42:58.009170 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver Resolving host [somedomain.localhost.type.nl]<^partitionKey=%28http%2Ctype.nl%29> - bypassing cache type 0. [this=7f4d8a1732e0] 2021-06-09 07:42:58.009195 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver No usable record in cache for host [somedomain.localhost.type.nl] type 0. 2021-06-09 07:42:58.009200 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009206 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup: somedomain.localhost.type.nl effectiveTRRmode: 1 flags: 2001 2021-06-09 07:42:58.009210 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver TRR service not enabled - off or disabled 2021-06-09 07:42:58.009215 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NativeLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009229 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS thread counters: total=1 any-live=0 idle=1 pending=1 2021-06-09 07:42:58.009236 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS lookup for host [somedomain.localhost.type.nl] blocking pending 'getaddrinfo' or trr query: callback [7f4d386f5e80] 2021-06-09 07:42:58.009250 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - Calling getaddrinfo for host [somedomain.localhost.type.nl]. 2021-06-09 07:42:58.076889 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Calling 'res_ninit'. 2021-06-09 07:42:58.137055 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - lookup completed for host [somedomain.localhost.type.nl]: failure: unknown host. 2021-06-09 07:42:58.137146 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver::CompleteLookup somedomain.localhost.type.nl 0 804B001E resolver=0 stillResolving=0 2021-06-09 07:42:58.137152 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 new gencnt 2021-06-09 07:42:58.137162 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Caching host [somedomain.localhost.type.nl] negative record for 60 seconds. 2021-06-09 07:42:58.137166 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver CompleteLookup: somedomain.localhost.type.nl has NO address 2021-06-09 07:42:58.137172 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 calling back dns users status:804B001E

Currently, I have configured my Privacy & Security settings in which all third-party cookies are blocked. This causes certain websites to break and become nonfunctional.

How do I configure my settings to which all third-party cookies are blocked by default, but for specific websites I choose they are not blocked?

I do not want to change my settings in which cookies are blocked only from websites I have not visited; because there are some websites I frequent that I still wish to block third-party cookies.

Thank you

Ever since upgrading to FF89, some websites don't increase the font size when I zoom in using ctrl+mouse wheel. The default seems like 9px, really hard to read.

Facebook is a culprit. Also OctoPi, a local service. Facebook, at least, uses rem units. Doesn't react to zooming in.

Debian 10 Buster

I have Firefox ESR on debian Linux , I didn't have Helvetica font on my font: i didn't need it.

With Firefox ESR : the font used for github menu or for twitte are "Liberation Sans" But on 89 version , on same computer with same font preferences : it's the unexisting Helvetica : then website are really awful.

How can than happen ? How can i fix this , I really don't need Helvetica, why is this font set ?

I put some screenshot showing the issue and the preferences set.

Thanks you

playing youtube videos 720p CPU goes up to 100˚C and 100% CPU on all cores it is since upgrade 88.0, before it was ok compared to chromium browser 720p ~ 20%

if I load 2-3 YT videos in tabs, the playback stops, changing tabs takes seconds, and also slows other applications down

i just upgraded my firefox to the newest version(89). when i type something in the google search bar in the home page, it just redirects to the address bar on top of the screen. i don't want this to happen. because i use the address bar to only type URLs and the google search bar to search random stuff on google, this was the case in my last version. please help me sort this. see this for clear understanding  : https://drive.google.com/file/d/17Y0bG64nhtymn--CCi3rOMEVLFAQ6zAI/view?usp=sharing

Since the latest update, Firefox shows a white space at the top of all web pages, covering almost half the screen. This includes customisation screens for addons, themes, and also the troubleshooting page. The only page that seems unaffected is Firefox's own settings.

The issue seems linked to the toolbar somehow, as entering fullscreen mode temporarily hides the issue. However, as soon as the cursor moves up far enough to show the tabs and search bar, the white space also reappears. Hiding either the menubar, the bookmarks toolbar, or both did not fix the issue.

Restarting Firefox in troubleshooting mode seemed to help, but I have not managed to find the root cause. These are the things I tried, first one by one and then all at once, with no result:

• Deactivating addons
• Switching to system default theme
• Deleting userChrome.css
• Clicking "Refresh Firefox..." on the troubleshooting page