Firefox Community Forum

While running Firefox on MacBookAir with macOS 15.7.2 to browse simple websites I keep getting the below warning message. I may have 2 or 3 other apps open (like Apple Mail, MS-Word, Preview). "Heavy memory usage You're running out of memory and your Mac may become noticeably slower. Consider quitting some applications. Firefox 2,48 GB" So I quit Firefox to re-open again and continue my work. Does somebody has an hint where this message can come from ? Any settings to change on my MAC ? Thanks for helping

I - unwanted - have a second line of BOOKMARKS above the one I selected. HOW DO I GET RID OF unwanted BOOKMARKS?? SEE PICTURES I TOOK OF these TWO ROWS OF BOOKMARKS, thanks, sfd

When I open firefox it loads 14 different tabs, if you view it from the task manager in Windows. It only shows one tab, when homepage is opened initially but clearly it's loading more in the background.

I have run the troubleshoot function as well as restart app (within fierfox settings)

I have also emptied the cache

When I try to log into Tangerine bank I get the error. "We're sorry for the inconvenience. This function is currently unavailable. Please try again later."

This issue started Oct-13-2025 and it appears to work when using Firefox ESR 146.01 but not the regular Firefox 146.01 versions. Tangerine is not giving me information on the error and I was wondering if there is a difference between the ESR and regular version that might clear up this issue?

In `about:config` I set `mousewheel.with_control.action: 3` quite a while ago, and today, after an update it stopped working. Current version: `146.0.1 (aarch64)`. Any idea why?

I started using the new "Profiles" feature in firefox, and I created profiles one one device. However I am finding that the profiles are not syncing across my devices. Both are Windows 11 VMs, I tried doing manual syncs, singed out and back in to both devices. But the Profiles I create on each just do not seem to sync, is this the expected behavior ?

I would like my home page to be the ABC news site. However, the default seems to be Brisbane Qld. No matter how many times I change it to my location, which is Melbourne Vic. and then select "use current page" in settings, next time I turn on my PC, it's back to Brisbane. Is there a way to set my home page permanently to show my location (Melbourne Vi.) ? Regards, Manfred

ChatGpt isn't working and it tells me An error occurred during a connection to chatgpt.com. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

I have a warning underneath my bookmark ribbon that says, "The security sandbox is disabled. Your configuration is unsupported and less secure." What is the security sandbox and what configuration is needed so that it supports the security sandbox. What happens if this security sandbox is disabled while I'm running Firefox?

I'm running Firefox v146.0.1

Facebook require a selfie to log in. I have one in my video camera but Facebook say I must provide access to my camera through my browser settings. I have searched browser settings but cant find anything that will satisfy Facebook. What can I do?

hello Ive been dealing with this constant battle of Firefox working for about a week and then just completely stops randomly. This problem never occurred when i was on windows 10 but ever since i installed windows 11 this has started to happen. If i turn on my desktop and Firefox doesn't work i have to either refresh Firefox through the uninstaller or boot into safe mode and then boot into regular and it will work for a couple days and then stop again its a full on cycle and in tired of dealing with this mess just to keep using your guys browser. I don't want to leave Firefox but it doesn't really leave me a choice unless you guys can help me solve this problem.

Stupid mistakes were made - I reinstallted windows and when I opened firefox I realized, that I did not know my password and also was not sure about the mailadress. I finally found an account with my mailadress but reset the password - it said that all data in the account will be deleted if I do that.

I got the old files recovered, but everytime I copy paste the old key4, login and cert file... nothing changes withing the browser. If I copy the whole old profile folder and exchange it with the new one and then I open firefox it just says "profile could not be found" and then firefox closes.

Is there any chance of recovering my old saved passwords or did I screw up entirely ?

When using ebay, I am unable to open additional pictures of a listed item, view an enlarged picture of the item, save an item or to bid on an item, while using my computer. I am able to do these things using my phone but it is much less convenient. This came about in the last week or so and I have been unable to determine the issue. Similar accessibility issues are not apparent on other sites. Obviously I have not been able to sort this out myself and am reaching out to see if you may have any suggestions as to what I may try.

Thanks you for your assistance, Dave Herman

I typically use FF to log into social security accounts. I have not been able to use FF for a couple of months to log in to ONLY THAT SITE. I can on CHROME.

ERROR MESSAGE: Bad Request

Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

The server at iso.scanfor.scanfor.be is taking too long to respond. iso.scanfor.scanfor.be is an unsecure (http) INTRANET site not publicly acessible (local server). At same time other browsers are perfectly able to access the site! So there is NO connection issue... This problem happens mostly in the morning, and solves itself during the course of the day  :)

Anyone any idea where to look for an issue???