Firefox Support Forum

The documentation says to use F11. F11 was removed from ChromeOS. The Full Screen Button on the keyboard will take Firefox out of full screen, but when you try to use it to put Firefox in Full Screen, the window gets slightly larger, and then goes back to its original size.

Other applications seem to be able to go to full screen using the Full Screen key that are running under Linux. For instance, gvim, thunar, meld, and gnucash all will go into full screen with the Full Screen Key.

Hello! I am using the userChrome.css file to hide the nav bar (# nav-bar) and show it when hovering the tabs.

The following code works a bit, but when I open the developer tools they overlap.

# nav-bar {
   z-index: -1;
}

# navigator-toolbox: hover # nav-bar {
   z-index: 1;
   background-color: rgba (0,0,0,0.8)! important;
}

#browser {
   margin-top: -45px;
}

Any advice to achieve the expected functionality? Thank you

gif showing the problem: https://s10.gifyu.com/images/firefox-customization-problem.gif

I installed Firefox on my Chromebook using flatpak. Something went wrong and now Firefox always freezes after it starts up. I tried to remove Firefox using the linux command line and got this message: “Package ‘firefox’ is not installed so not removed”. I can't find where this package is located and yet it always starts up as the default browser on the linux side. Any ideas on how I can find and remove this broken Firefox?

Hello community,

I have tried many fixes I found online to solve this issue but I have had no luck, this issue even persist into troubleshooting mode. Some sites have white text over a white background and other sites like best buy just have broken html/css, this issue just started happening yesterday for no reason as I have not changed anything of firefox since install, the only additions my browser has is bitwarden and nordvpn add-ons. I have attached pictures as examples. Also if it's any help my system is running Manjaro Qonos 21.2.0

Thank you.

I have noticed that suddenly all the themes on all websites, like github and startpage, are set to dark theme. I didn't set them to dark mode at any point and don't want them all to be dark. Some websites say that they use system settings for default theme. I do not remember changing any settings in my OS(Ubuntu) or in the mozilla browser.

hi. I'm currently using kubuntu 18.04 and I just had to remove my m.2 C: drive because of power outage (it's completely fried) and I downloaded files with my firefox I've made a lot of bookmarks but I haven't signed in to my firefox account and I'm afraid if I log-in and sync I'll lose all my local data. so What happens to my local data if I sync with my Firefox Account?

Problems with slowness and crashing. Checked manage data and found this message: Your stored cookies, site data, and cache are currently using 17,179,869,184 GB of disk space. Cleared yahoo.com and yahoosandbox. A few days ago it was google.com causing this same absurd data message. v 94.0 on Linux

Since my Firefox upgraded to Version 95.0 I can no longer use my xml files transformed with xslt 1.0. Both the xml files and the corresponding stylesheets are stored locally on the hard disk and I accessed them with file:/// ... The variable privacy.file_unique_origin in about:config is set to false but the stylesheets aren't interpreted, only empty pages are appearing. Please tell me how I can solve this problem, or is it a bug? Thanks

Hi! I'm using Firefox 95.0 on Linux Manjaro Gnome. For some reason, strange CSS styles began to appear on some sites, making them unreadable. It is not possible to understand where this styles comes from, but definitely not from the site, since in other browsers they are displayed correctly. Here is a link to screenshots from different sites screenshot 1 screenshot 2 What's most interesting - in the Settings What I have tried: - Fonts And Colors section: The checkbox in the "Use system colors" is unchecked The checkbox in "Allow pages to choose their own fonts" is checked - I also tried to clear the browser cache - Also disabled all plugins - Changed the theme to the default one. - Disabled / Enabled "Use hardware acceleration when available" - I think that styles from userContent.css & userChrome.css are applied to sites. And I removed this files from /home/user/.mozilla/firefox/87syjf8o.default-release/chrome How I can fix this?

I couldn't get the crash data at all. But I managed to get this from the Terminal;

[Child 10502, MediaDecoderStateMachine #4] WARNING: Decoder=7f0fd7cf1400 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr<mozilla::MozPromise<RefPtr<mozilla::MediaTrackDemuxer::SamplesHolder>, mozilla::MediaResult, true> > mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file ./dom/media/MediaDecoderStateMachine.cpp, line 3470 Exiting due to channel error. [GFX1-]: Receive IPC close with reason=AbnormalShutdown Exiting due to channel error. [GFX1-]: Receive IPC close with reason=AbnormalShutdown Exiting due to channel error. Exiting due to channel error. [GFX1-]: Receive IPC close with reason=AbnormalShutdown Exiting due to channel error. CPU time limit exceeded </p>

DISCLAIMER: THIS HAS BEEN SOLVED! Dear Firefox Team, I have installed Firefox-ESR on my HP Chromebook 11, using linux. I saw it going slow so I searched up stuff. I went to "whatsmybrowser.org", saying Firefox 78. I saw that on an article there is 91 and 95. It is 11/3/21, and no update is showing up which a help article said "On 11/2/21, users can update to Firefox-ESR version 91." I couldn't update, so I am now asking for help. Its also going VERY SLOW which I can barely run scratch, google, and even the homepage. Please give me answers so I can fix the problem. Thanks, cogithedog.

Hi, i'm using Firefox Sync and therefore FF asks for primary password on every startup. The delay until it asks for the password is annoying. e.g. already typing into my favorite search engine when i look up and see the seach term is typed into the password field because of the delayed, random popup.

I know there's a workaroud to pin Firefox Account site to speed things up, but this is a bad workaround. Why isn't it possible to change FF to ask for the password immediately when Sync is enabled. Can't be this hard.

P.S. Why isn't Chrome asking ever for a password, even if Sync and PW are stored?

pappl

Hi, I have a Firefox account since long, I use it to publish my add-on. I haven't signed in recently and didn't take action when I've received an email that developers should move to 2FA. Now I'm trying to sign in to my account but it's always asking for the 6 digits security code, even though I have never set up 2FA on my account and thus don't know which authenticator app I need to use. Neither do I have recovery codes - naturally. Can anyone help me with my account? Best regards, Kaspar

Lately, Firefox unchecks the 'use autoscrolling' and 'play DRM-controlled content' options sometimes (but not every time) when it starts. Other settings don't seem to be affected. It does seem to unset both at once, never one or the other at a time.

I have begun using Firefox routinely on two computers, both signed into the same sync profile. My best guess is that maybe one profile is overwriting the other? Both of these options are set on the second system, but maybe there's something going wrong with the sync?

Thanks, Patrick

The exact version doesn't matter, but I am using Firefox v. 95.0 (64 bit). Earlier, recent versions had the same problem. I am using Ubuntu 20.04.3 LTS.

When I click to select one of many available choices, Firefox often automatically dims the screen. If I stop typing, the screen is slowly returned to its normal, bright state. I can keep working with the dimmed screen, but it is very aggravating and error-prone.

An example is at https://species.wikimedia.org/wiki/Zyras, which gives numerous choice selections. Try quickly selecting and then exitting several nearby choices.

I can speed up the return of brightness by using a shell window to run "xrandr --output HDMI-1 --brightness 1.00; xset s noblank; xset s off; xset -dpms" and then quickly selecting (in my LG Settings/Displays window) "Fractional Scaling" scale OFF (100%) and then ON (100% vs "125% 150% 175% 200%") several (up to 30) times.

HOW DO I COMPLETELY TURN OFF THE FIREFOX SCREEN DIMMER?

For my work, I need to paste a lot of links into text (on a website which is probably somewhat poorly programmed), and when I select some text and hit ctrl+k to create a hyperlink, Firefox doesn't recognize that it's a text box and "takes over" the ctrl+k function, focusing on the search/address bar instead of allowing me to insert the link. (The reason I blame the website is that other websites, like Jira, work fine for this)

Is there a way to disable the ctrl+k functionality in firefox? I've seen a couple old threads on disabling various shortcut keys but I don't know what the "Focus Search bar" key would be called in either the Browser Console or configs.

Thank you!!

I just updated my very old Firefox browser and I set up my new account and thought that would capture my old bookmarks, but they aren't there. How can I my bookmarks back?

Hi,

Each time i start firefox on my laptop and syncing firefox, it shows a different location than my actual place that i am logging in(different country) . I was at the location roughly ten months ago.

Some time ago, all of a sudden Firefox did not auto filled my login name for my protonmail account It did however autofilled another login for another emailservice, but not my protonmailname. I emptied my cache memory, logged out of protonmail and tried to enter (for saving) my username, but Firefox keeps asking to save both my loginname AND my password. But I don't want to save my password(s) on my machine nor on any other place but my head.

I asked the proton-team about it, but they said I need the latest Firefox version (I think I do) and storing logins and password(s) is solely a browser thing and has nothing to do with protonmail.

The weird thing is, my son has the same problem on another machine, and has not made any changes whatsoever. Plus he works with an old version of Firefox because he likes that version and hates changes (an autism thingy)

Now when I log in at protonmail the message pops up if I want to store my login, but it does not let me only store my login name, it keeps asking my password as well so I'm forced to decline while I DO want to store my username.

How can I store ONLY my username and NOT my password? How come that feature is gone, but also on my sons PC with his very old Firefox version?

(by the way, I'm dutch and answers in dutch are highly welcome because I not very good with PC (nor with Linux/ubuntu))

Sometimes Firefox crashes suddenly and shows a window to restart Firefox or quit Firefox. After restarting the browser Close, Minimize and Restore Down buttons have disappeared. I use the dark theme, and after restarting right-click window is white.