Forum communautaire Firefox

I recently got a new PC, and all my information was erased from it. I thought it wouldn't be a problem, as I expected to get everything back by logging into my account. However, after trying to sync my account for hours and searching on Google and YouTube for solutions, none of my information has returned.

When I contacted the person I bought the PC from, he said he couldn't help because I had forgotten to do something, possibly related to a Firefox update. I'm devastated and was hoping someone here could help. Is there a moderator or administrator who could assist with account recovery?

hey there, i am having problems turning off the automatic translation within the firefox browser. concerning watching videos, it is pretty annoying, but doing any kind of research at all becomes difficult, if the translations do not make sense or have obvious mistakes. i also personally prefer to keep my apps in english, although i am located in germany.

i tried turning it off with specific sites, i have tried to add exceptions, i have tried to make it translate english sites into english. all without any real progress, i just keep getting weird, german AI-sentences. my only assumption is that it might be related to anti-virus software or vpn-related aspects.

if anybody has thoughts or maybe even a solution, you are very welcome to share. i would really appreciate it and thank you!

export GDK_BACKEND=x11 MOZ_ENABLE_WAYLAND=0 MOZ_DISABLE_WAYLAND=1; /mnt/bootdrive/firefox3/firefox/firefox -P tx1p72s0.dev-edition-default XPCOMGlueLoad error for file /mnt/bootdrive/firefox3/firefox/libxul.so: /mnt/bootdrive/firefox3/firefox/libxul.so: undefined symbol: gdk_wayland_device_get_wl_seat Couldn't load XPCOM.

Has support for X11 been removed?

Secure Connection FailedAn error occurred during a connection to nregade1.nic.in. Peer’s Certificate has been revoked.

Certain colours have changed after an update to version 140.0. Most noticeable (and barely readable for me) is the unvisited textlink colour: it was light grey but is now suddenly light blue/cyan? See screenshot with Google Search as example. How can I change this back? The only place in FF settings for colours is under Contrast settings but that's unusable: it overrides settings of sites, altering their layout. Strangely enough there are no General settings to alter colours?

Hello all:

Just downloaded version 140 and ran into an immediate "visual/appearance" problem with regard to the background color(s) of the sidebar bookmarks view. Many themes now have totally dark sidebar colors and not readable (see screenshot image upload with this posting). I always have my bookmarks (almost 1200 of them) displayed in my sidebar, and this is the first time an issue like this has arisen with a Firefox update.

To remedy this scenario, I must use very light colored themes that have a white background when you bring up the sidebar bookmarks. If not, everything is totally dark and unreadable.

Any ideas or help on this one?

Firefox 140 I use Tree Style Tabs for my tabs, and have for a long time. I updated to 140 and now, at the top of the sidebar is "Tree Style Tab X". Clicking X closes Tree Style Tab and the sidebar. My question. Is there a way to not have Tree Style Tabs and the top of the sidebar, but return to "BookmarksHome" which was at the top previously? Appreciate any help or ideas.

new addons do not appear in toolbar, >> dropdown, or Overflow area.

wife's computer. Updated firefox to 115.25.0esr and it lost her Profile so I went to about:profiles and figured out which one to make default. It found her history, bookmarks, addons BUT reverted to the previous 115.24.0esr. (another problem there - should I try to update it again?)

After adding some more addons, I see they are active in the Preferences, but icons do not appear anywhere.

Hi Mozilla support Having used MetOffice daily forecasts for many years, 3 days ago it stopped working on my desktop. I still have Windows 7 but always the latest version of Firefox, and everything else works fine in Firefox (including other weather forecast websites thankfully). A page of Met Office headings appears instead of the forecast.

I emailed them yesterday and this is the reply: 'To see the public website in the previously recognised format, you would need to upgrade the browser version you are using or the Operating System of your device. This issue is affecting users on unsupported mobile devices (phones/tablets) as well as those on PCs and Laptops with unsupported software on them. As per our Met Office Website Policy page - which details the level of support we offer and to which browsers – we currently only support the latest two versions of Chrome and Safari; the latest version of Edge and Samsung Internet; finally the latest version of Firefox only being partially supported. This policy has been developed to comply with the World Wise Web Consortium (W3C) AA Accessibility Standards. It also details the Decision Tree of which versions would continue to be supported or no longer supported We appreciate this may be frustrating, but without updating or replacing this unsupported software/hardware you will be unable to view the public weather website in the correct format.'

Since it says 'the latest version of Firefox only being partially supported' I guess there is nothing else I can do to access their forecast (apart from getting new PC and using Windows 11, which I will be doing later this year). Kind regards, Katy

Yesterday, I had Firefox open and running perfectly fine, and I had forgotten to shut down my laptop before closing it. Today, when I reopened my laptop, the Firefox window that was open instantly closed. I tried opening Firefox again, but it kept opening and closing immediately. It would show that there was an open window of it, but the window itself wouldn't open. It would run in the background but never actually open. I tried uninstalling and reinstalling, but it still did the same thing. Does anyone know a solution to this?

I keep getting "Secure Connection failed" for a hour at a time whe trying to access Mail online. I am a commentster, and don thave Adblocking. It hsppens on busy sections of Mail online

The page https://support.mozilla.org/en-US/kb/ai-chatbot lacks the list of data shared with the chatbot AI providers. It would be nice to know how it is done, how to review the data, and how pages can provide better data.

Hello, Since the update on 24 June 2025, bookmarks are displayed in black text on a black background. Is this normal? If not, how can I resolve the issue? I had set it to dark mode, but even when I switched back to light mode, nothing changed. I would appreciate help from the community or Mozilla if anyone has a website address to contact them. Have a nice day.

I have been using the new tab group feature a lot over the past few weeks. Today I realized with horror that only the three most recently used tab groups are displayed when I click on the arrow icon “Open all tab groups”. The missing tab groups are very important to me. I hope someone can help me.

Hello.

I use Firefox on an computer with Ubuntu, (installed as snap) and have noticed that since the update to version 140 (specifically, version 140.0 canonical-002-1.0), closing a tab causes a noticeable delay : that is, upon any action that would close a tab (clicking on the cross, pressing CTRL+w, or middle clicking), there is a delay of about 200 to 300 ms before the tab is actually closed.

However, during this delay, the window still responds to inputs, leading to rather annoying situations. For example, during regular usage, I usually open a great number of tabs. When I am done with browsing, I close them, by repeatedly clicking the cross button on the tabs. It used to be that the tab under the cursor would immediately close, then the next tab would slide under the cursor, and I would click again to close that one, etc.

But now, when clicking the cross button, the tab is not closed, and when I click again after a small delay (because of muscle memory), the tab is still there. This cause the two single clicks to be treated as a single double-click, which for some reason puts the window in full-screen mode (but only with the snap version; I'm not sure what's going on here).

When using CTRL+w when closing tabs, the delay is still there, but the inputs are correctly handled. If I press CTRL+w three times at the usual rate, I can see the three key presses, then nothing happens for a few instants, then the three tabs close at the same time (i.e. the delay is from input to tab close, not from tab close to other tab close).

This behaviour is completely absent on Firefox (also version 140) on my windows computer.

This delay does not appear when creating tabs, and it does not occur either when closing the window or when closing the last tab in the window (leading to an amusing situation where shutting down Firefox is actually faster then closing a tab). These operation keep going at their previous speed, immeasurably fast to the human eye.

Navigation does not appear to be meaningfully slower than before the update, and the CPU/memory usage is very reasonable.

Curiously, this appears to be a fixed delay. Closing an empty tab takes the same time as closing a very busy one. Closing a tab when there are five takes the same time as closing a tab when there are thirty.

This issue makes browsing feel incredibly sluggish.

Is there a solution for this problem ?

Edit 1 : I have tried to run Firefox in troubleshoot mode, but there was no difference in behaviour. Edit 2 : Fixed typo. Edit 3 : Added exact version. I also tried to refresh Firefox, but the issue remained.