Firefox Community Forum

Since updating to Firefox 141.0 (Win11), I've had issues with performance and on-screen behaviour of dynamic web pages/sites. The problems do not manifest on Chrome, or on a reinstalled version of Fx 140.0.4 on the same computer running at the same time (and with copy of original profile's data files, extensions etc.), they do manifest on a new Firefox 141.0 profile with only one tab open.

The problem happens on dynamic pages (e.g. gmail.com, boardgamearena.com/lobby) but doesn't seem to happen on static pages. Note that this doesn't depend on page elements moving around the visible window (e.g. panels opening and closing).

The manifesting problems:

• Screen pointer rapidly switching between standard arrow pointer, mouse with index finger (clickable link) and serifed-style insertion bar, even when positioned on a part of the page that is not a link or a text box. Video (MP4, <1MB) showing behaviour at https://imgur.com/a/absjTh4.
• Browser intermittently fails to respond to browser actions (mouse clicks, keyboard entry)
• Small increase in browser CPU usage

Problem is worse if general CPU usage (from other applications) is already high - low CPU usage reduces but doesn't eliminate the problem. (Established by changing my BOINC settings and/or snoozing BOINC and observing; I have a gadget that monitors CPU and other resource usage.)

The fact that I can see the problem occurring on Fx 141 but have Fx 140.0.4 working fine at the same time on the same page, suggests that this is a Fx 141 issue. Regular malware scanner and an alternate found no issues.

Happy to do more diagnostic testing if it's helpful.

As the question stated I have navigated to my mozilla profile folder, ( C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\pw1dnvcy.default-release ) but there is no file called persdict.dat. I have ensured all file name extensions are visible, & none are hidden in windows file explorer (Win 10). I am at al loss I cannot figure this out.

I have successfully posted a question, and I figured out how to view my post (GilDawson -> View Profile -> My Questions). However, I notice that my screensnatch does not appear with my posting! It is important to illustrate my problem, and I was careful in uploading it, yet I cannot find it and I cannot figure out how to update my post.

I had to re-installed from 0 my windows. I was sure my Firefox account had all my passwords and logins because I had problems in the past regarding this. Installed Firefox into my new fresh windows. Hit the Sync bottom. Lastly, remove the old Firefox account login from old windows (for safety).

Now I checked password, 0 passwords saved.....

I am trying to re-sync but nothing happens...

Today following a brief power outage I was no longer able to sign in to AOL with Firefox on my desktop computer. I am able to sign in to all other apps with no problem. I tried clearing my cache, restarted Firefox, restarted my computer and spent 30 minutes on remote desktop access assistance with AOL trying to fix the problem with no success. I can log in to my account using Chrome on the desktop computer and can log in with no problem using my Android phone but can't log in using my desktop computer with Firefox. I've verified that my Firefox version is updated. I am running Windows 11 Pro.

I would greatly appreciate any helpful advice.

Every time the browser autofills a password it asks me for my Windows password. I don't want this behavior, as this makes password autofill completely pointless. How do I disable this "feature"?

I cannot change the background image when my Firefox app opens on my MS Windows laptop. During set-up, the system had me select an image, but I want to change it as I find it distracting. Thanks!

You have invited me to download a new version of Firefox.

So What do I do with my existing Firefox?

If I don't like it, can I go back?

Please let me know.

John Parrott

I would like to add another shortcut to the Firefox home page, but although there is enough room to add one in the second row, no spaces with an edit tool are visible or available. I am using a MacBookPro with an M3Pro chip.

I updated Firefox and all my plugins except for Grammarly were deleted, I saw another post talking about going into profile folder but I couldn't find anything about that

Hello, When I try to use Mozilla firefox, using this rather than Google chrome I get the following warning from Malwarebyte: Exploit.PayloadProcess.Block, making me feel uneasy. Best wishes, Torbjørn Borgen Lindhardt, Denmark

hi, i cant find an option to dismiss the new sidebar. it's pointless and i can switch all the buttons off, but now there is just an empty space at the side of my browser. very annoying. i hate the AI integration and i will not be recommending this browser to anyone in the future because of it. I have spent years convincing others to make the switch to firefox, but what's the point if it ends up just as toxic and useless as every other browser. disappointing.