Firefox Community Forum

Hello,

I'm writing because I’ve encountered an issue with the tab groups feature in Firefox.

Some time ago, after a browser update, I noticed a new feature that allowed me to group tabs thematically — I could name each group (e.g., "Study", "Work"), choose a color for it, and save and close groups to reopen them later. I found it very useful and used it a lot.

Last night, I decided to declutter my browser and closed several tab groups using the built-in menu. A bit later, I shut down my computer, but perhaps too quickly. This morning, when I turned my computer back on, Firefox was very slow to start. After a restart, everything seemed to work fine again, and the open tabs were restored.

However, all my previously saved (but temporarily closed) tab groups disappeared. In the tab group menu, I can now only see the ones currently open. I’ve searched through all the settings and history but cannot find any way to restore the missing groups.

Is there any way to recover the tab groups that I had previously saved and closed?

Thank you very much in advance!

I received this download from Firefox today, July 22, 2025: xRqj7qhl.html - Size: zero bytes - Kind: HTML text . I've never experienced this before. Is it legitimate? Thanks

Application error: a client-side exception has occurred while loading (see the browser console for more information).

where is the browser console? how do i fix it never had an issue with until the last two days?

I was able to use it this morning from my macbook. But the afternoon I was on sites where my passwords usually fill but now everything is empty, everything had been deleted. I tried to log out and back in to mozilla and sync, but everything is gone. Over 100 sites and passwords. How this happened ? Where can i ask for help since Mozilla doesn't offer any.

Literally every single extensions I try to download says Installation aborted because the add-on appears to be corrupt. I don't know why because I just downloaded firefox.

How in the heck do you increase the size of the UI font? I have a 1440P monitor and the TINY size of the UI font makes it nearly impossible to read the text on the menu buttons, I have lean forward and squint to read it because they are so damn small. I can't find anything in the settings to make the UI text larger. It is as if some dummy hard coded the UI font size so it's impossible for the average person to find out how to change it. It makes no sense whatsoever.

And please don't tell me to increase the zoom in the Windows settings, because that screws up EVERYTHING else...

Another thing that is driving me crazy is how do you set it so that scrolling with the mouse wheel is smooth and not jerky? When i scroll with the mouse wheel, instead of smoothly moving the page up or down, it JERKS a couple of lines at a time. This is the only browser that it does that in. I have smooth scrolling ON in the mouse settings on my computer but for some reason, only Firefox is doing this.

I have spent hours with Tech department and digital assistand department at Directv. Today they are telling me as long as I use Firefox I will be unable to access my account. I have paid to have my computer checked out and was told that it was updated and the system was working fine. How to I get Directv to recognize my system?

So I'm on Firefox ESR 140.6.0 on debian 12.12 but I've noticed this problem with firefox in general (earlier versions) on Linux. When I am browsing with a few tabs open (4gb of memory on this laptop) suddenly on reddit or some random website, quite at random, everything freezes and I have to restart the laptop.

Crash reporter doesn't start because the tab doesn't crash instead the entire laptop freezes - it happens only in firefox. How do I debug this problem? I think for some reason firefox gobbles up all my memory perhaps and that causes Linux to lock up.

What do I do about this - it is quite frequent and frustrating but random - I can't say exactly when or on what site this will happen.

When customizing the toolbar, Firefox has a standard button named "Forget" which lets you easily delete browser data (see the attached image).

I'm using this button, but I should like the button to work in a different way. What I want is that everything except from browser history is deleted, when I click the forget icon. It should not be necessary to first click the forget icon, and then "Forget!" (as in the attached image). I don't neither want to restart the browser or open a new clean window

Does someone know how to achieve this without developing my own plugin? Does the standard buttons have some scripts somewhere that can be edited?

Hi Team,

after the mentioned update about a week ago, I experience quite some system slowness. Building up new pages takes between 30 and 60 seconds each, and some live streams are interrupted (3 seconds running, 3 seconds stop, 3 seconds running, etc.). This has never happened before. My Internet connection is good (confirmed by the provider), and using Google Chrome, all is as it should be, no slowness, no disruptions.

Can anybody advise, what the cause(s) could be, and how to solve these issues? Please let me know, if you need more information.

I really would like to continue using Firefox.

Many thanks in advance for your assistance,

Michael from Norway

As a stakeholder, I am unhappy with Anthony Enzor-DeMeo's ideas to incorporate more AI into the Firefox browser in the future. Most internet browsers are using AI nowadays, and I think Firefox's lack of AI makes it a very appealing browser for users. This is because new AI technology annoys many people. As other browsers continue to incorperate more and more AI, this will increase Firefox's appeal for users who are annoyed with AI.

Overall, I think Firefox will be a much better browser if it does not incorperate AI. It will mean a lot to me if these concerns are taken into account. Thank you for all that you have done.

Sincerely, Eli Buikema

I am technically challenged in my 80s. I have always used Firefax bookmarks. Somehow I can not pull them up today. It seems they have been erased. I have an apple computer.

I've installed FF on new computers a few times in the past year and I've noticed that it never syncs the Search settings (things like default search engine, adding StartPage, etc.). Is that by design? Is there a way to make them sync?

We have a web page we've created that is linked to by multiple other websites. For two of the sites where this is linked, Firefox (only) gives a "The Page Isn't Redirecting Properly" error. Using the exact same URL to link from other sites works fine in all browsers. Once you get the error, if you click in the URL and hit enter, the page will load fine. Any ideas? When searching that error, all the ideas I find tend to focus on the individual user's system, but this is happening for all users.

I had once used my computer for my husband when his was down. Now when I'm in my computer in a web site, an example send a recipe to myself, when it comes in my email it comes from his account not mine. I've went on to his unit made sure my computer was not signed on using his account. I think it's coming thru Google but I can't figure what where & what to do about it. I attached an image showing the first account that comes up when going to google. I can go up to change the account to mine. But if I'm in site then send something it still shows his account & any response goes back to him not me. This causes much confusion as you can imagine. Is there a way to make this stop?

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?

I often use the key combination Ctrl+Alt+X in Google Docs when on different devices but it doesn't function properly when instead it brings up the AI sidebar gadget. Removing the sidebar button doesn't really help and it's annoying. So how exactly do I turn off the key combination for the sidebar?