Firefox Community Forum

I seem to keep getting a popup every few hours regarding XULRunner complaining about "This profile was last used with a newer version of this application. Please create a new profile." This will occur every so often, even when Firefox is not open.

I have already attempted to:

• Reboot
• Clear cache
• Uninstall extensions
• Uninstall/reinstall Firefox
• Downgrade Firefox
• Make a new profile and switch to it
• Delete all previous existing profiles

I think I've run out of things to do, anyone got a silver bullet for this thing? I was unable to find anything conclusive with Google, so I figured I'd ask here.

the crash report ID is dd1e4f07-c2e0-4372-be7f-e82820250128 this is odd, Laptop was running linux mint, i beleive 20. mate. i reinstalled to the latest 22 and then copied over my .mozilla folder since then FF has been crashing. so i opened it in troubleshoot mode and it still crashed. so i moved .mozilla over and let FF recreate it and its still crashing.

im not sure where to go from here.

here is the crash report. https://crash-stats.mozilla.org/report/index/dd1e4f07-c2e0-4372-be7f-e82820250128

With this brand new Win11 computer (not an upgrade, it came with Win11) after installing firefox and logging in to my previously saved account, every time I open firefox the Home page (my bank) does not recognize the https: and asks me to continue. once i get into my bank account, log in, log out, then open a new tab my it recognizes my bank page. If I close firefox and open a new window, same thing.

Also, on a second tab I need to login to my Google account for some email and it take a long time for the page to come up to login.

How can I make firefox run as fast as it did on Win10? Also, 3rd party internet security is AVG. Everything is new/fresh install so all software is up to date.

Thank you. KEN

A few days ago, something happened to the Firefox browser. The speed is simply terrible, sites are loaded for several minutes. Reinstalling does not help. Other browsers work fine.

Was prompted for various system updates including apps(Firefox). Performance has been very sluggish. At some points, it feels like I'm browsing on dialup. I have a 1GB connection from my ISP.

Not sure if this is a Firefox issue or in conjunction with the other system updates.

I'm currently on build 134.0.2 (64-bit), no extensions enabled. I've tried starting the browser in troubleshoot mode. I've wiped and uninstalled Firefox, which worked while I was NOT signed into my mozilla account. My .*lz4 files are fine when the browser are open but I've noticed as soon as I close it they are overwritten with the outdated session file. Considering this has happened when I log in into my other laptop, I'm presuming this is a Mozilla account synchronization issue. I may be looking at a red herring and would appreciate any guidance. Is there any fix or setting I am capable of doing?

For the last day I've been having a problem with FF slow to load. I've tried the troubleshoot mode with little change. When it does load I can have problems with certain web sites loading e.g. Youtube, MSNBC, AOL mail etc. It's never consistent. The cache is clean and I've saved all the relevant cookies, I checked my internet provider and they are having no problems and I don't seem to be having any internal hdw issues e.g. ethernet cable connections etc. I reinstalled FF-not a clean install and seemed to help for a time. Do I have any options other than a refresh? I don't seem to be having the same issues with Edge or Chrome. All W11 updates are current. I look forward to anyone's comments.

When saving images from websites using the save image as feature, Firefox will freeze up and not register any mouse click or anything instead making a ding noise every time is register a mouse click. This will continue for like 30 seconds before it becomes normal then it will repeat this for every image. How can I solve this?

I have been having issues for some time with my home page not loading after startup in the mornings. My default browser works fine. But Mozilla Firefox is not! If I shut down numerous times, or do a restart or go into my default browser, Firefox will load after an hr or two of repeated attempts! This has been going on since the last 3 updates. I have plenty of storage left on my computer. I have just done the latest update (134.0.1 (64-bit) - Windows 11. Can anyone throw some light on this issue?

I experience Firefox crashes when doing simple tasks (Youtube, WhatsApp, searching). It happens frequently. I also experience crashes on my system and other software in general (Photoshop, After Effects, Blender).

Here are some crash reports IDs bp-ad13b5a3-98db-4873-82d3-20b3d0250126 bp-b01811eb-4d7a-47cb-af4f-2265b0250126 bp-abb7bdcf-9bb4-4a64-a745-e5a300250126 bp-6bd03510-8242-4311-9c6a-3dcdf0250125 bp-6c7b83c5-cb1f-4f89-b56d-5f4f20250123 bp-c857cf83-a0fd-4cd2-a4e9-e54010250123 bp-551e852c-0d45-43b2-8908-0552c0250123

I have run memtest86, Prime95, Cinebench and Furmark. These tests and benchmarks detected no errors or performance instabilities.

I believe it's systematic issue. I have licensed software and Win 11, 32 GB RAM, i9-14900HX, 4070 RTX, Lenovo.

I set pagefile management to automatic. I tried to clean cache, but nothing works. SFC /scannow doesn't give errors. Setting firefox.exe to firefox1.exe doesn't help. No addons installed.

What is causing the issue?

Help appreciated! Thanks! :)

My default browser is firefox. from 2 weeks not working properly.after open the browser it cannot load the home page or any tab.i have tried to troubleshoot,refresh and reinstalled many times.same problem.please help.my one & only browser is firefox.

I have tried the suggested: In window search type :%Appdata% - see image below as guide Select %Appdata% file folder Select 'Roaming' Select 'Thunderbird' Select 'Profiles' Select the 'profile name' folder look for and delete this file : parent.lock

But when I do access appdata all I find is a Microsoft folder. Properties of the appdata folder are to show hidden files and the number gigabytes in the folder properties are greater that the just the Microsoft folder has suggesting that there are hidden folders. Any suggestions?