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This thread is for the search function, as I found some VERY old and outdated suggestions for the aforementioned issue using the search function.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

On the page listing passwords, it was possible to sort them by "Alerts".

In settings, there is an option to enable checking the vulnerable passwords: https://support.mozilla.org/en-US/kb/firefox-password-manager-alerts-breached-websites

On my other laptop using Firefox v121, the alerts are properly displayed. But on my second laptop using Firefox v124, the alerts are gone. I can't sort password by "Alerts", the option isn't there. Both laptops share the same Firefox account and have password synchronized between each other.

Obviously, I ticked the "Show alerts about passwords for breached websites" box in the settings but it looks like it does not nothing. I also checked in "about:config" and everything seems good.

Is this feature gone?

Have just noticed that there are no longer green Norton check marks against web results. Have spent all morning in live chat with Norton. They say it is the way it has been set up. Very disappointed as they check marks were very useful.

Recently, I have been unable to hold down backspace to delete multiple characters in certain text boxes in Firefox. Namely, in the EndeavorOS forum post text box, Google Docs, and the google search box. I am not experiencing this issue with any other app, and in chrome, with the same pages, the issue doesn’t occur. The issue also does not occur in the URL box or the forum post text box here. The issue still occurs in troubleshoot mode.

Hello, 1. How do I bring history back -since mid March - after a windows system reset and laptop clean up recently? I signed on but I cannot find the prior history nor tabs closed. I use Windows 10. 2. Why when I open a new tab, the 'profile or account' icon does not show my picture, so as to indicate that I am signed on? Each time a new tab is opened, Mozzilla does not recognize me!! 3. When I click on the account icon on the second row, instead of taking me to my account, it takes me to settings, Synch. 4. I have selected the dark mode - from customisation - but the first two rows are in light blue-gray color same as the task bar of Windows 10. 5. I tied to use the take a screen shot function to send you a screen shot of the page that appears in dark except the top rows, but when I click the screen shot icon - that I have placed in the second top row - it does not activate-work. 6. From the Menu some info shows in Greek although my selected language is English. Is it possibly due to my location, under the profile, being Greece? should I change it? I am sure I ll come across more issues, as it feels as I am driving a new car since the change and all is annoying Thanks

How do I perform very basic editor functions like add/remove/move a page in the new Firefox PDF document editor? I am in the Mainstream Firefox 124.0.1 64-bit. Thank You, David

When using the CPU, the browser runs at 144 fps, but if I switch to the GPU, it becomes 60 fps. I tried switching GPUs for firefox in the nvidia control panel and Windows graphics settings - nothing helped. Are there any solutions?

I've installed firefox and weirdly when I use youtube or just browsing the CPU is 250 and it's draining my new mac really quickly. This did not happen before on my previous mac. Seeking some help and answers, went to Apple genius bar and they've stated is the firefox application that is causing the fast drain of power.

I Have used Firefox as my main browser for a long time. I've also played the games on pch.com (Publishers Clearing House) for years. About ten days ago, I started having problems connecting. The error messages have changed a little each time, but still no access. I've also tried Chrome and Edge, and still no access. Today, I tried to access on my phone and got a 'site is not secure' message. Any idea what's causing this or what the problem may be? Have you heard about changes to the pch.com website? I can access the site if I turn off my ISP connection and use a data connection. My ISP is Optimum. Looking for any guidance. Thanks.

Since I upgraded from Kaspersky Internet Security to Kaspersky Plus, my Protected Browser version of Firefox has lost track of my current Protected bookmarks and stored passwords - but the bookmarks and passwords in the standard (i.e. not Protected Browser) Firefox remain the current set. Unfortunately this is a different set, so I no longer have access to the Protected passwords etc. Although Firefox has just updated to 124.0.1 the About display in Protected Browser insists "Firefox is being updated by another instance". Kaspersky have studied the GetSystemInfo report and cannot find anything amiss, so is Firefox causing the problem? e.g. where in Firefox did Kaspersky manage to find a three-years-out-of-date set of bookmarks and passwords?

I am running Firefox 124.0.1 on Mac OS Sonoma 14.4.1.

I set Firefox as my default browser. However, when I have links that should redirect and open in an external application (Apple News, Facebook Messenger, etc.), Firefox does not redirect to these external applications. I have searched the FAQ and the internet but haven't seen an answer to this. As a result I have switched my default browser back to Edge, which functions as expected.

I suddenly started a thick outline shadow around dialogue boxes such as the Google search bar. I thought it was them but it is on all websites and only on Firefox. I did not change anything. I did restart my pc yesterday but it just started this morning when I opened Firefox. Firefox 124, Windows 10 I don't like it and want to get rid of it but I don't know how.

On Mac OS 14.4 Firefox hangs on launch and crashes, requiring "Force Quit" when I try to Refresh or Troubleshoot. Uninstalled and reinstalled multiple times, and restarted computer several times. Have spent several hours trying multiple community suggestions to now avail.

I am not a programmer, but am able to follow instructions. I clearly need someone to hold my hand and walk me through the solution. (I even checked out the Kaspersky suggestion, but cannot install it because Firefox cannot connect to the Internet.)

I have downloaded and saved "Raw Data.docx" and "Application Basics tex.docx" from one of the crash reports.

P.S. On this question form Firefox guessed that my operation system was Mac OS x 10_15_7, but it is 14.4

Julian

Hi, I seem to be increasingly having problems logging into some sites. Mostly it seems to be football sites - https://supercoach.heraldsun.com.au/afl?destination=%2Fafl%2Fclassic&apiIdentifier=afl_classic and https://www.fanfooty.com.au/. Both are working fine in Chrome with the same username and password. Recently I couldn't log into my AGL electricity account, then suddenly, it came good on it's own. I have cleared the cookies but that didn't help. Cheers, Ian.

Hello, Firefox randomly downloaded a file, with seemingly randomly name, that is 0 bytes and in download manager the source is moz-safe-about. It happened when I was accessing a popular wiki site. I opened the file in notepad, it was empty. I put it on virus total and came back negative, as it is an empty file. I've curbed through the support tickets here, using the keyphrase 'moz-safe-about'. I understand this was/is quite a common problem, but it still makes me quite worried and left a sour taste in my mouth, as I haven't understood any of the explanations. I have enabled firefox to ask me whenever it wants to save something (I have no idea why this isnt the default state). Happened on a somewhat fresh, updated win 11 installation. I'm also attaching more information here with a picture. Long story short: should I be worried? Am I overreacting and this is just some sort of a bug that occurred while getting a sites data? Thank you for your time.

I have been going to the same website using Firefox for a year or two and now when I go there the home page for the site shows up for a few seconds then disappears leaving a white screen. Once when I was backspacing there was a notice saying it had been deleted from it's cache and to reload which I did but nothing happened. I have also been using CCleaner and I have been cleaning the MFT free space for Drive C I've been doing that for a month or so and I'm wondering if that caused the problem? I wouldn't think so if it was the problem it should have happened the first time I used it and it should happen on my other browsers and it hasn't. It's only 2 web sites that I know of that have this problem there may be others but I haven't found them yet. How do I get FF to reload the site in it's cache and keep it there if this is a problem with FF? If this is a problem with CCleaner and the free space scan I'd like to know that. Thanks for any help this is great.

When I open firefox it is fine, then ads, buttons, means of surfing then net opens new windows (according to task master) and never closes a window. So once I'm into a game or web site, it's taking over half of my memory (showing like 11 firefox windows open). I can't play any of my games, even minecraft (which is odd). This didn't happen til this last update. Right now I'm stuck at home mending a broken hand, so I kinda need my browser games where I only use my mouse. If there's an easy fix, I'd really like some help in fixing this issue please. Thank you, Lisa Pearson

Hi

When I scroll text for some reason, Firefox stopping scrolling very slow. It's almost take up to 2 seconds. Very annoying smoothest. I have stopped scrolling already but Firefox still scrolling and finally very slow stop it. I can't focus on the text because it's still slows down the scrolling.

How to fix that!?