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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.

I haven't been able to move tabs around for days. Not since I tried to take some 'out' to make a new window, and Firefox straight up crashed ...repeatedly. After I gave up, I noticed the tabs no longer moved.

I ignored it a few days, but its frankly very annoying! I checked for answers & found an old post from 5 yrs ago here & followed the advice. Or I tried to, but when I checked "browser.tabs.allowTabDetach" in "about:config" it was already set to "true". I even toggled it a few times (I even tried to see if it would move when set to false! ...counterintuitive, but I figured it was worth a try?)

Anyhow "browser.tabs.allowTabDetach" is still set to true, and I'm not about to go monkeying with all that :\

(fair warning, while I know how to alter a config under clear instructions ...my experience with such things starts and ends with the config files for Stardew Valley mods)

advice I found, which doesn't work/apply??- https://support.mozilla.org/en-US/questions/1302126

Hi! I´m a big shortcut user and a year-long Firefox fan and user. Now it´s the first time I´m using an Android tablet (Boox Tab X C) and the typical shortcuts for new tab (Ctrl + T), close tab (Ctrl + W), etc. do not work. I researched this a little and it seems to be by design. Why do you forsake us, Firefox god??

In any case, thanks for the good work folks. Love the Mozilla name and what it stands for for a long time now. Peace

The Alt-<number> keyboard shortcut is used to switch between tabs. However, the key event used to switch a tab seems to also propagate down to the content itself. This creates weird interactions:

- I switch to third tab - The web page running in the third tab actually uses Alt-3 to do something - After switching tabs the web page does something unexpected because the browser chrome didn't swallow the event during its tab-switching procedure.

The most irritating candidate seems to be XenForo forum software that uses Alt-<number> to go to different sections in its menubar. For example, alt-4 seems to open a search page and going there provides no new entry in the browser history. So, if I've tab-opened the forum to display new posts and then later I switch to it using Alt-4, it makes the content go to its search panel with no way to go back to new posts. Ironically, switching _away_ from the tab 4 does not register to the content so I can't even use the forum's own keyboard shortcuts to navigate back to new posts section or any other section. Having the forum in tab X will only ever let the forum see Alt-X and nothing else.

This all stems from the fact that Firefox lets the initial tab-switching key event through whereas I think it shouldn't. It maybe should if the corresponding tab is already active but it certainly shouldn't when a tab-switch actually occurs.

I've obviously disabled the content's capability to override keyboard shortcuts but it doesn't help in this because the content is not overriding anything: it seems to be just listening to a keyboard event that it shouldn't see.

Did I miss some option in about:config or do others see this as well?

I can not seem to find the button to open a saved, closed tab group. I have googled, and there seems to be a lot of people with the same issue. However, None of the information given under those forums provides me with a clear, easy solution. Please help.

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.

There is currently a button to "Open in Firefox" in Focus, but this only opens the tab in private mode. It would be nice to have the option of just opening in a regular tab.

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.

good afternoon! if i close browser, then reopen it i see blank tab. But in my settings checkbox turn on (screenshot 3). How resolve this problem?

Windows 11 Pro Firefox 151.0.2 (64-разрядный)

Contributor note: The screenshot shows the "Open previous windows and tabs" setting enabled.

This is true particularly with ChatGPT and Claude, but has happened on other tabs in the past couple of days. When I am on a different tab, and I click on a "problem" tab to view that content- it duplicates the tab instantly. If I click on "x" to close it, it duplicates again. I can close with Ctrl-W. It seems like certain tabs are "magic" tabs, because sometimes I can click the "x" to close a duplicate tab without issue. But when I go back to the original problem tab- the behavior persists. I don't really want to purge the cache for these sites, but I will if I have to. I had installed a new extension (TamperMonkey) a few weeks ago, but everything seemed fine until a couple days ago. I disabled that extension yesterday, but the problem persists. This problem existed before the latest Firefox update. I went to check the previous version number before posting (I update frequently) and it updated today.

Thank you for your help!

Bill

This was working just fine up until 2 days ago. As the title says, when I close firefox, it is now no longer restoring my tabs from my previous session. Closing via the x does not give me the option to restore my previous session.

I have:

Tried unchecking the box, closing firefox, opening it again and rechecking the box. No success.

Uninstalled firefox, restarted my computer, and reinstalled firefox. Still no success.

I am open to further suggestions.

Before the update, I could use "cmd+shift+[number]" to open a new container tab. Now, nothing works. "cmd+t" opens a tab with "no container", which is completely different.

I already tried going to "about:keyboard", but opening a new container tab isn't even listed as an option.

Hello, on Firefox desktop I have several pinned tabs and I would like to change the order they appear in. Is there a way to drag and reorder pinned tabs, or a setting for this? Thanks.