Forum der Gemeinschaft Firefox

Hello, I am from Ukraine and I use a translator, sorry for that. I have poor physical and mental health. I have Windows XP and there is no possibility to buy a newer computer. Yesterday all my browser extensions were disabled. They are very important to me. I accept and understand all the risks. I beg you, please let me use these extensions. Please help...

i was browsing youtube and suddenly got an ad, which is how i noticed my add-ons were gone. all of them, not just the ad blocker. and they had still been there like a couple of minutes ago. when i go to download any extension, i've tried a lot of them, it just says "installation aborted because the add-on appears to be corrupt" but it doesn't say what i can do about that. please help!

Hello! Yesterday (03/16/2025) I received a message that the ChatZilla add-on to Firefox will be disabled on the next restart of FireFox. The message indicates that the extension could not be "verified".

I am using a VERY old computer for ChatZilla only: Windows XP Firefox 48.0.2 ChatZilla 0.9.92

I don't care about the age and inability to update any of the software, but I need to continue to use ChatZilla on this platform.

I have used ChatZilla on this machine for a very long time and do need to continue. Is there any way that I can make this work without having ChatZilla automatically disabled at the next restart of Firefox?

I have been using the iCloud Passwords extension successfully with MS Edge, but decided to switch back to Firefox as my default browser.

Having requested and installed the extension (v1.3.77.1), it shows as working in Firefox extensions management, and the icon appears in the toolbar, but a message is displayed when the icon is clicked, "Download iCloud for Windows to use iCloud Passwords".

The issue is that I already have iCloud for Windows installed and working, and iCloud Passwords working with Edge. It appears that Firefox cannot detect that iCloud for Windows is installed and working.

Please can you tell me if this can be resolved, and if so, how? Thank you.

Dear,

I use a hotkey for the screen-capture program "Snagit". The hotkey is: CTRL-SHFT-P

However, it now seems that also the AI-search program "Perlexity" uses the same hotkey.

Where can I remove the shortkey for Perplexity?

Last week my (very old) computer crashed and upon restart, Firefox was displaying the attached error image. I uninstalled and reinstalled Firefox several times in an attempt to get it to work but upon re-installation(s) every tab would just say "Your tab crashed". I was receiving the 'Bad Image' error code for Firefox as well as other software such as my pdf reader and iTunes. I took my computer to my local shop where they told me my computer was running out of memory and so they've installed some more as well as upgrading my 8gb RAM to 16gb.

I'm now able to run Firefox again, and my other software, but I've since lost the profile, with my tabs/bookmarks/history all gone. I'm super ADHD and so was very reliant on my bookmarks and my many tabs to organise my life.

I've tried importing old profiles from an 'Old Firefox Data' folder but none of them have my old bookmarks etc. The 'Old Firefox Data' folder seems to be dated after the crash.

I also did not have a Mozilla account at the time of crash. Is it possible for me to recover any of my old profile data? Any help would be greatly appreciated!

The small green dot in the upper right that notifies me of a pending update is gone, since several months. When I navigate to About Firefox, or in the settings, I can see that a new version is available and it lets me install the update. But I miss being able to see the notification.

Did I disable some setting by mistake? Auto-updates should be turned on as far as I know.

What a dirty trick! I updated Firefox to version 136.0.1 to stop all the nagging, and my tabs disappeared! Nothing I could do brought them back. I asked the internet and finally learned about the sidebar, where tiny icons are shown (which I hadn't noticed). Nothing I could do with the sidebar brought the tabs back. Asked the internet again, and finally I found that buried in the Preferences is Browser Layout. When I deselected "Show sidebar," the tabs came back. What a dirty trick to make that the default, with no clue how to undo it! Nothing in the menus or the Help was any help. P.S., I am not a computer novice; I was a systems programmer in my professional life and have been using Firefox for many years.

So I have a bunch of Firefox profiles I want to set up a new profile and I want to set up the profile switching with in that profile perhaps by creating a bunch of profiles from the about profiles page and then replacing those profiles with the old ones as I don't see a way to just import old profiles in the UI. How do I go bout doing that like copy and move exactly what exactly where.

When I display a statement from Tesco Bank it opens a new tab and says that I can download or print it from there but I can find no Download tab nor anywhere in the customisation options to add one.

Hi,

I have a very old version of Firefox (51.0.1 64-bit) on Windows 7 Pro. I know it's well out-of-date. It's not my "main" browser, but there are some things I use it for because there are (were) some handy old extension on it. For example there's an extension that simply copies any text I highlight, without my having to press CTRL-C. I find the "scrapbook" invaluable for saving info offline.

Yesterday everything was fine. Today ALL the extensions have been disable because "[extension] could not be verified for use in firefox and has been disabled". There is no option to enable them again.

I have backups of the extensions (xpi files), but firefox is telling me that they appear to be corrupted.

Is there any way to either enable the disabled extensions, or force firefox to reinstall then from my backups? I have toggled "xpinstall.signatures.required" to "false".

Thanks for any help.

Please assist or advise why Firefox seems to be slowing down my system by memory usage. I have a handful (6) of tabs open on 1 browser session and my system started slowing down so I checked my task manager and it shows that I have more than a dozen of Firefox instances open chewing up almost 90% of my memory.

Please assist or advise me on how to tweak my browser to perform better, and not to show ghost instances

This morning I went to check my email on gmail, and google asked me to sign in again. Easy, I thought. I entered my account, and then google asked for my passkey. Until this morning this meant that on my mac it would ask me to place my finger on the right key on the keyboard. This morning it just froze firefox indefinitely. I then tried on Safari, and it worked as expected. I checked the version of firefox: it's 136.0.1. Obviously something changed (i.e. broke!) with the new version. Has anybody else experienced this? Any suggested fixes?

I have never had a problem opening my email client before in Firefox, but now after the last time I started my computer I get this message when I try to open my email client (Shaw Webmail):

400 Bad Request Request Header Or Cookie Too Large nginx/1.24.0

Oddly though, it will open if I go into the Incognito window. Why is this happening and how can I fix it so I don't have to constantly into Incognito mode to access it?

I normally use Firefox Developer Edition, version 127 because any later version always freezes my whole computer (probably because I'm using a 15-year old PC). Recently all my extensions became disabled. I'm now also unable to install any extension because it says "Installation aborted because the add-on appears to be corrupt". I found some instructions on Mozilla website about deleting compatibility.ini and extensions folder, but it didn't solve the issue. Now I'm stuck and confused as I suspect some of the extension files that should be in my Profile folder may not be there.

The simplest solution in this case would be to use the "Refresh Firefox" option which resets everything to default settings, but every time I do it my computer freezes until rebooted. Uninstalling and reinstalling manually is also not the way to go, because it retains all the settings.

I've tried installing the standard Firefox browser (v. 119) alongside the Developer Edition but the same issue is there as well.

I'm looking for an alternative way to get a clean Firefox install, so I can fix my extensions.

Additional info: - Your system specs? Windows 10 64-bit, 4 GB RAM, Pentium Dual-core, no GPU - Hardware acceleration? Disabled. - Using any mods? Yes, two. Geckium for Firefox, which always works fine. The recent issue started when I played around with Revert8Plus, but it initially worked without issues.