Firefox Support Forum

Sometimes all add-ons / extensions break randomly and are disabled (the icon of the extensions is also broken under "Manage Your Extensions").

The extensions are visible under "about:addons", but the slider is turned off and the icon in front of each extension is broken / empty.

It seems that deleting these 2 files- compatibility.ini and extensions.json inside the firefox profile folder, usually fixes the issue. Only these 2 files though, don't delete anything else.

No need to mess around with the ff profiles or anything else, just deleting those 2 files and restarting the firefox usually fixes the issue with the "unregistered" addons.

This thread is for the search function, as I found some VERY old and outdated suggestions for the aforementioned issue using the search function.

I wonder what causes the extensions to "unregister" randomly.

Lest update to 15.9 all my extensions are now disabled. Missing Lastpass and Surfshark from my menu bar. Doesn't seem to be any way to Enable them from Extensions screen.

I reloaded Lastpass from their site and this is now working on my Menu bar.

But what happened to cause this

To open a link of a website in the background tab is CTRL+click, why is it that to open a bookmark of the bookmark toolbar in the background tab is CTRL+shift+click. It is confusing! A bookmark is a link! For comparison, both of them are CTRL + click in chromium. BTW, there is no explanation in advanced configuration preferences.

Hail all:

OS: W11Ent_x64 V: 22h2 (b: 22621.3447) FF: 124.0.2 x_64 I tried several "Group Tabs" add-ons, like: Simple Tab Groups. Tab Group. And I few I can't even recall the name from. Yet, none works. Not ONE.

Now, I use Edge as well, on my corporate system that I got from work. Personal PC I use FF on.

But, the Edge Tab Grouping, which allows tabs to be "put to Eco-Sleep", while hidden the open tabs by clicking the Group-Tab Icon, is a feature I sorely miss in Firefox.

Odd, as, so many requested this feature, how come it has not been implemented over the many years of people asking?

Either way: Does anyone know a good, WORKING add-on that does the "Edge Thing" with FF tabs, please? Since, I often got like 200 tabs open, which is a real misery without Tab Grouping and "Hiding".

Thank you aforehand: Ke'Ylan.

remove ad blockers even though I already have removed them.

printer is not recognized as being online although my other devices don't have the problem. i use Firefox on all devices

Can someone please answer how to reset firefox size after you've been using a bigger screen and go back to the laptop the top bar is lost way up and I cant catch it to move it to resize the firefox window. Using Fn and F11 to go into maximize mode doesnt help me at all cuz I end up in full screen on the FHD screen but cant grab and drag the window to resize it again - and please NO comments about using FN and F11 again. This is an issue thats been since years - cant figure out why ppl who are tryin to help think others dont know the difference between maximization and the window being bigger than the laptop screen and being lost. So FIREFOX key-shortcut for window size reset URGENT PLEASEEEE - Im having this issue couple times a week. To fix it I gotta go again to the bigger screen reduce the size of the window and then disconnect - which is soooo horrible.

I'm running firefox 124.0.2 on Linux Mint and am having the most bizarre issue. I've got a logitech M560 mouse, and when I press the mouse button for Forward it functions normally. However when I press the mouse button for Back, Firefox ignores it.

I've already confirmed that the OS is registering the button click as 'Back' using Input-Remapper, and the extra mouse buttons are enabled in the Firefox configuration. I've also used the mouse on another PC with no issues so this one is kind of boggling the mind.

I have a dark themed website with light colored lable that is positioned inside the input field and having the autofill to autocolor the input's background yellow makes things look horrendous. I've tried the following CSS:

``` input:autofill, input:-moz-autofill, input:-webkit-autofill {

   filter: none !important;
   background: rgba(0, 98, 155, 0.35) !important;

} ```

On top of that, I tried changing that for myself in about:config changing ui.-moz-autofill-background to false, but after clearing browser cache and doing a hard-refresh, the yellow autofill background color persists.

That would be a personal fix, but I would rather firefox not murder the theme of my site for others and let me have control of what color the autofill background color should be (if I even want there to be a difference in colors). Am I missing something? I don't simply want to turn that off for myself (although I still want to, but it didn't work). I want to change it for everyone visiting my site. (Like I'm able to change the colors of link or border colors or background colors of other elements).

When I open a new window that needs a password, the RoboForm Icon does not show for me to click on and get the password to be filled in. This just happened recently as it has been working fine.

Over the last week, a little purple icon appears in upper left corner of my firefox browser, it looks like a person viewing a screen. It sits right on top of the red-yellow-green circles that allow me to minimize, enlarge, or close the browser, and renders Firefox unusable. How do I get rid of it?