Firefox Community Forum

I sometimes spend an extraordinary amount of time writing a forum entry or online email -- sometimes 5+ hours -- just to get it to say exactly what I want it to say. And all too frequently, I accidentally press C-W (the delete-word key on my editor), and my work is instantly gone. I spent several days attempting to solve this problem. Apparently I'm not the only one who has lost data this way. Entries on Reddit pointed me to https://support.mozilla.org/en-US/que.../1378404#answer-1510431. I followed the instructions carefully, and double-checked my work, but C-W still kills my current tab. The issue had been archived, but not solved.

I am a programmer (but certainly not in JavaScript), so I try to take technically complex solutions in stride. But after letting things percolate thru my mind for a few days, I realized that I'm not being fair. FireFox is marketed for public consumption. And it's not fair to my sisters, my mother, or other folks who have never programmed anything in their life, to pretend like a solution that might have worked for me (but didn't), would be even a little bit comprehensible to them. I was particularly struck, by something that the moderator said -- not by his words, per se, but by the perspective that his words revealed:

--- Only closing a window (Ctrl+Shift+W) could possibly make Firefox display a warning, closing a tab is always done without a --- warning as you can reopen a closed tab via Ctrl+Shift+T.

Who would know that? I would venture to guess that 99% of FireFox's users don't even know that you can control FireFox from your keyboard -- let alone actually want to do it. People control their browsers with their mouse. They use their keyboards only to type in forum entries and such, or to scroll up/down thru a webpage. I can see where devs might prefer to control/test FireFox from their keyboards, but I'm surprised that they would leave tens of undocumented shortcuts lying about like landmines that everyday users could stumble onto.

So I'm requesting that FireFox disable Ctrl+W and Ctrl+Shift+W (which are the most dangerous shortcuts), by default. Ideally, it would provide an about:config entry so that devs could re-enable those shortcuts if they wish to. By the way, the referenced support entry lists only 1 person with this problem, and only 6 replies. But it lists 2124 views.

Thank you

Even though I have settings set to load previous tabs when Firefox is started up but when it is restarted it doesn't load the tabs. This has only occurred the last few days. My solution is to select "reopen all windows" which does what I want but also opens several other versions of Firefox. Noteworthy, confusing, but probably not associated: In the course of trying to work through this, I have had a baseball playing on Chrome. I ended up closing out Chrome but the baseball game audio continues even though the Chrome appears to be closed on the taskbar.

Good Day,

I am leaving Brave as my default browser for Firefox.... Brave is good, just would prefer Firefox. I used to love it.

The problem is...I have a theme on Brave and Chrome that I love dearly. Is there a way to bring that theme to Firefox? I tried using Firefox Color, but it looked awful.

PS: I am the tech Village Idiot so please talk to me in that vein ;)

Thank you and Warmest Regards, Alisa (Stormwolfe)

A few days back, the browser "+" symbol used to open another tab at the top right of the browser window disappeared like a bad odor in the wind. Performed a search and located instructions on line that explained using 'about:config' settings to restore the symbol. It worked and I was browsing wonderfully again.

After closing the browser a few days later, the + symbol has vanished again upon restarting. Have searched in vain online to locate the parameter in about:config that I need to reset, but cannot locate it and I do not remember the parameter to search. CRS problem.

I can go into the Customize menu and drag a folder with a + symbol to the menu bar but it behaves differently. Just want the convenience of clicking the + symbol to automagically start another tab.

The setting works...in the way that if i quit Firefox, it'll not continue from the tabs and windows, but if i reboot my pc and open Firefox, I find myself the same place i stopped...even though i have that setting disabled. I found someone else with same issue on reddit and i did the same restarting the browser and refreshing and all....all to no effect.

Hello, with older versions of firefox, it was easy to rank your favorite sites, which could avoid having 50 windows open at all times. Is there a way to do this? Thanks in advance.

Any Ideas what is going on? About July 21st, 2025 I started noticing with a couple of browser tabs open, a new tab opens autonomously and flitters in the new tab name area, what "looks like a TagID", then closes by itself. I define "looks like a TagID" as something that looks like a tag at end of article link in popular newsletters I see, and appears in the url bar of the linked article.

The occurrence of the new tab happens when I open the browser, within 1 minute and occurs randomly during the session, perhaps every 20 minutes.

My first suspect/assumption is I am always signed into Mozilla when I open Firefox 141.0 (64 bit), processing an update now, Aug 5 2025. I have subscriptions to VPN and Monitor and I have sync (passwords and bookmarks) with my mobile instance of Android Samsung Galaxy phone.

My Desktop is set up as Windows 11 pro with one employer InTune acount for Microsoft but I limit that work to Edge browser.

Firefox 147.0.2 (64-bit) on my Lenovo Yoga 7 Windows 11 Home has been randomly malfunctioning when i use the hover over tabs with the mouse to show what is in the tab (small image) Sometimes it just fails for several hours, other times it works fine on its own later that same day.

I have tried to find this inside the browser several times with trying to find this browser-tabs-card-Preview-enabled inside about:config But it doesn't seem to exist in this version and apparently you can't add a new rule inside the browser to solve it.

Google AI solutions search is outdated or the wrong version. My computer and browser are up to date. How do i fix this ? I don't want to uninstall it, lose my logins and the bookmarks if i am unable to sync my files after trying to reinstall the browser only to find out it has failed.

My tabs won't allow me to move/rearrange them. When I attempt to click and drag them around, they do not change order or escape the window. Window functions such as resizing, closing, and moving work as normal.

I regularly use a website which intercepts command-option-up and command-option-down for its own navigation. This is a central part of my workflow with this website, and without it it becomes completely unusable.

After updating to Firefox 140.0.4, these shortcuts are now used by the browser to switch tabs. I have not found any way to configure this. Am I missing some obscure way to do this or is this just impossible?

I imagine this change was made to support vertical tabs, but I'm not using those, so the command-option-left and command-option-right shortcuts make more sense for my horizontal setup. (I don't use those shortcuts either, though- I use ctrl-tab and ctrl-shift-tab!)

All of a sudden Firefox started to use alt+number (e.g. alt+3) to switch to that tab (i.e. tab 3 in my example).

Why? How do I disable this? It prevents me from typing any of the special characters that are located on alt + any number key. E.g. I can type the at-sign, not the dollar, or any such character which requires the alt-modifier and a number.

When I click on a bookmark, FF opens it in the current tab, overwriting the site I had open. I have to add a tab, then click on the bookmark to have it in a new tab. This is an annoying extra step. How to I change it? I already tried the open links in new tabs instead of windows. Makes no difference On or Off

You seriously need to remove the AUTOMATIC tab grouping, it's annoying as hell!

I know there's a workaround, but that's beside the point. You don't break into someones home in order to re-organize it, that's just bad practice all around.

I often hit ^T (control-T) in firefox without meaning to, because I use that chord in other applications a lot. In firefox it opens a new tab, which is almost never what I want. I'd like to suppress that keyboard shortcut. I tried doing it using vimium (unmap <c-t>) but that has no effect.

Thank you, Silvio