Firefox Community Forum

Firefox is creating very high CPU use with many WebThumbnailExtension Web Connect processes. The processes disappear after shutting down Firefox and other programs that access the internet. Does anyone have an answer on how to prevent this from happening?

MacBook Pro M4 with MacOS Sequoia 15.3.1

System Details: Macbook Pro (2021) 16 inch Apple M1 Pro macOS Sonoma 14.6.1

1. I downloaded the latest Firefox from Mozilla official website, installed the app, made sure I can see the Firefox app in my applications. I start using the app. 2. Everything will be fine for a few days (say 1 week or 10 days) and one fine day, the browser stops working. Even google.com doesn't open. 3. I quit Firefox and try to re-start it. I cannot find Firefox in my system. It just disappeared. I cannot find in my applications. The search doesn't show Firefox.

I re-install by going back to step #1

This has happened not one time but many times. I searched if others have this issue but did not find anything that i could use. Hence posting this question here.

I have Firefox installed on a lot of other Macbook pros in my home, no other system has this issue. I don'ty understand what is happening. Just wanted to get some guidance in resolving this issue.

Thanks _Krishna

I have a 2012 MacBook Pro, still using maverick's … I tried to upgrade Mozilla and now it doesn’t work.

I am shy of what’s needed to run the latest Firefox version and I’m not able to buy a newer laptop, how can I get restated again with the version that will still work on my MacBook ?.

in Austria I used to sign documents with the mobil phone and TAN-code. The system changed (now ID-Austria) where it is possible to sign documents using fingerprint, eye-scan or a FIDO2-key like Idem-key or YubiKey. It seems that this should be possible for Mac-users using google chrome. I don´t want to install google chrome only to sign documents! Is there a possibility to define a code for using FIDO2 keys with firefox. Keys are already defined in Mac settings but I can not use them to sign. thank you Robert

I’ve been using Firefox on my Mac without any issues, but I recently had to erase and reset my Mac. After reinstalling Firefox and attempting to sign in to my account, I am unable to sync my data.

When I click “Sign in” and enter my password, I successfully log in. However, it immediately returns to the message “Please sign in to reconnect,” and I am unable to proceed with syncing.

This is the first time I’ve encountered this issue.

On a positive note, I can still see my organized bookmarks on Firefox for iPhone, which were synced from my Mac before the reset.

I want to know whether I can update my current Firefox version with my very old desktop setup. I am using the Firefox browser version 78.15.0esr (64-bit) on my iMac 2007 running OS X El Capitan. This notice came up when opening Firefox: " Your version of Firefox will start to have problems on January 14. A root certificate will expire, causing some preferences and other features to stop working. On March 14, 2025, add-ons and more features will also break." Following the instructions to update, in About Firefox window, it checks for updates and then shows Firefox is up to date. I've interpreted this as there's no version available that I can update to. Is that correct?

I have looked over this computer high and low for any profile files in every way recommended on this website. I can't find it, regardless of what I put into terminal or what settings I change. This was a problem before the update to tahoe too.

My upper Apple menu is not visible unless I move the cursor up to the top of screen. This is the menu bar which includes the File, Edit, View, History, Bookmarks, Tools, Window, Help, icons and clock. I can't find how to correct this.

When I open FF 137 on my iMac running OS 12.7.6, it just keep trying and trying with no link. When I try and quit it needs to be forced quick to stop running. There are no fire walls and it worked yesterday 4-5-25 just fine, but no go today. I tried replacing FF and still no luck, what do I try now, [email removed]@yahoo.com

I am unable to remove add on themes. The remove button is not provided. Only manage which enables the theme. I do not want these themes and want them removed now. mac ios

We have two Macbook Air computers, both using Firefox. On one of them the cursor no longer works on a particular website. Both laptops have Firefox 301.03.

The website tech help said Firefox was not compatible with their site but the problem is only one of the computers. What could be causing the problem?

I'm tired of trying to find a solution to this problem, you're deaf!

I have been using Firefox since 2003. to avoid writing unnecessary words, I will simply state, I will leave firefox if you do not eliminate this problem:

firefox eats up all the RAM on my Mac. It is none of your business whether I open 1 tab or 10 tabs, give me the ability to limit the memory used by firefox, otherwise it eats up all the computer's memory.

I recently was unable to have my audio and video function while in an invited Google Meet meeting. I use a Mac OS, Sequoia 15.3.2 (24D81), Firefox 137.0.1 (64-bit), and latest Google Meet.

I use Firefox's "Strict" privacy settings and could use some instructions on how to allow Google Meets to function properly on Firefox. For example, I have turned on the browser window toggles to allow the site special permissions - but still cannot get the Meet Audio and Video settings at the bottom to toggle on (see screenshots), the message is a grayed-out "permission needed". I cannot figure out where the permission needed is located...Is this a Firefox, Google Meet or somehow my Mac. Sending this to Google as well.

Thank you

youtube: Ad blockers violate YouTube's Terms of Service - i have no adblockers (extensions) on this NEW (installed 10/19/23) firefox on imac or on my macbookpro (which still allows me to watch youtube).

/edit: moved thread from Firefox for iOS (for iPhone/iPad) to Firefox section as you have macOS on your iMac and macbook.

I went to Ugsound.com accidently while using Firefox on my Imac. The Firefox warning came up immediately and I left the site. Did Firefox protect me from malicious virus or was it too late? I was on the site for maybe 7-8 seconds.

Yesterday I could access my passwords saved in Firefox, but today there were only two & those were in an open window for passwords. How can I recover my list of passwords, please? I'm using a MacBook Air with an M3 chip, Sequoia 15.3.1 Thanks so much!

It used to be that Firefox had different containers. I kept separate ones for shopping, banking, Facebook, etc. Now I had to erase my MacBook Pro IOS, and after a few days of trying to use Safari, I installed Firefox. But I can no longer see the possibility of using containers. I found them particuarly helpful when I had more than one account for a certain platform - with containers, I didn't need to sign out and sign in to switch users. It also (supposedly) kept Facebook from tracking our interests. Has Firefox done away with containers? Or have I simply forgotten what they are called (buckets, maybe?). I searched and searched the help articles to no avail. If they have done away with them, why?

By the way, Chrome (which I had to use at work) started offering a similar product and it was also very helpful.

I'm using Mac OS 11.7.10. Firefox desktop no longer allows me to browse the internet. It just keeps spinning wheels. I've downloaded the newest version and it still crashes. What can I do?