Firefox Community Forum

I use Firefox in Windows 11, but when I close it and reopen it, my three open tabs are gone, it is supposed to open them, as checked in settings. I see the same thing happening in the MacOs, but no answers for Windows either.

In an accounting/payroll software application, a new window opens instead of a new tab. How to I fix this?

I've already tried about:config method as well as the simple 'tabs and browsing' method within Firefox settings. Nothing seems to work.

I have vertical tabs enabled and the "expand when hovering mouse" option is activated (see screenshot). However, the latter functionality tends to glitch at some point in basically every session. I can't tell if a specific action triggers it, so far it seems pretty random. The glitch is that either the tabs are expanded and won't collapse, or the opposite: they're collapsed and refuse to expand when I point at them. Is this feature maybe still experimental? or something? I'm running Firefox 149.0b5 DEveloper Edition on Garuda Linux (Arch based).

It used to be really easy. I have Firefox set to open lots of tabs when starting. If I then decide I don't want some of those tabs any more I simply closed those tabs and then went to settings and there was a button to save my Homepage. Then I closed Firefox and next time I started it all my tabs, less those not required, would open. Now that doesn't seem to be possible.

How do I just get rid of the not required tabs? And, in the future, if I want to add more tabs how do I get them to open next time I start Firefox?

There is a special tab area at far left side of tab bar. I once put a site there, but can't recall how to add more. The image included should answer further questions you may have regarding my query.

I've just updated Firefox to 136.0 and found the "return closed tab" key became blank and ineffective. I read the update log but didn't find infomation about this change. The function was useful to me and I hope to get it back.

Today I updated to FireFox 151.0.3 and now I can no longer drag my tabs. I drag tabs all the time. I drag them to rearrange the order. I drag them to put a bookmark in the folder I want in the position in the list that I want. I sometimes drag tabs to make tab groups. None of that is working now.

Hi a few well known sites annoyingly load booking.com in a new tab on my firebox browser. I cant stand this it is intrusive. How to I stop firefox from doing this - I have block pops setting enabled but does not help.

Offending sites to name but a few are ryanair, thetrainline, and a few others. Is there a way to stop this without stopping other legitimate needed new tabs such as with Gmail login

thanks D.

I have vertical tabs enabled and I'm trying to access the tab overview menu to close duplicate tabs. Unfortunately I can't find this menu anymore. If I disable vertical tabs, I can see the icon in the top right. How do

How do I access the tab overview menu when using vertical tabs?

Thanks

I tend to have a lot of tabs open at a time and even with the Customize Sidebar > Hide tabs and sidebar checkbox ticked, it is still distracting at times. Could you please help me find a setting/way so that I can hide it and make it re-appear when I hover on it only. Kinda like how we have on windows taskbar? Much appreciated.

I have a couple questions on tab groups, I'm a new ms edge refuge but this not as smooth as I would like :). I realize tab groups are oddly new for FF, but I'm trying to get setup and running into two main issues. 1. I cant seem to freely reorder the tab groups, I can move the individual book pages no problem but not the groups as a whole. I would expect to be able to left hold click drag the order of the groups just like individual tabs. 2. Tab groups don't seem to exist across clients (or maybe I'm missing the how). If I open FF on my mac I would expect to see or at least be able to reopen the same tab groups as my windows PC, not just the individual pages from history on other device. Is there a way to do this? 3. can't import tab groups from edge? You don't want to make it easy for folks to switch?

Thanks, if I missed something happy to learn.

I really can't add to my Summary other than it's a fairly recent issue, started in May 2026, possible April. About.config is set to False. I hope some has a solution - it happens when I'm dealing with live incidents.

I have lots (~100) of tabs open, distributed among windows and virtual desktops. Every now and then the laptop fan starts running wildly, and I identify a CPU hogging webpage in about:processes. How can I now switch to the open window/tab of that webpage to close or unload it? I would expect a click (or context menu item) within about:processes to bring me there. Currently I have to scan through all desktops/windows/tabs to find the page.