Firefox Community Forum

I am experiencing a flickering/highlighting effect on various webpages when using Firefox on some of my computers (a Microsoft Surface and Asus Laptop, but not my work desktop). Attached photos show an example from Gmail, where the one photo shows it open in Microsoft Edge (no flicker/highlighting effect) and the other photo shows it in Firefox.

When my cursor moves it causes the greyed out portions to jump to other areas. I also see this in places like the toolbar, where the rounded edges of bookmarks are now sometimes a grey square, similar to the greyed out emails in the photo.

I have restarted and reinstalled Firefox with no changes. Any idea what is causing this?

Lately, I’ve noticed Firefox consuming more RAM, especially with multiple tabs open. Is this a common issue in recent updates? What are some tips to optimize Firefox performance on lower-end PCs? Would love to hear your experiences!

I have an external monitor connected to my laptop which is classed as Screen 2 in Extended mode. I have Firefox open on the external monitor and when a pop up window opens it always opens on the laptop screen and not the same screen ( Screen 2 ) that the browser is running on.

Is there a way to set the pop up window to open on the same screen as the browser, as per other browsers ?

New system and firefox used to crash the tab, rather than the browser, but now it crashes the browser at the inevitable OOM situation

browser.tabs.unloadOnLowMemory is already set to true

For the past few weeks Firefox has been crashing and freezing often. Crashes are worst when trying to access Protonmail, which almost always crashes the tab instantly. Freezes happen most often when browsing Reddit, and also when watching Youtube, but crashes and freezes can happen on almost any website.

I have tried changing profiles, refreshing and uninstalling/reinstalling, but the problem persists and seems to be getting worse over time.

Here are some recent crash reports:

bp-3d92e88d-bdc6-4629-a869-899650250219 bp-c57e72ab-a6e5-47d4-abeb-d5ce90250219 bp-b66a1b94-6392-4fc7-a2d9-4b9ee0250219 bp-2544016d-d918-4027-9b0e-de75e0250219 bp-23ca9aa4-0934-4f23-b2e1-0390a0250219 bp-9ea6fa00-c531-428e-b276-ad3760250219 bp-4b4316fd-ccb3-4787-877b-50ed40250219 bp-fe9ecc18-35dd-4654-b0e9-45ce00250219 bp-5447133c-6fe3-43fd-800a-dbdf10250219 bp-bb92230d-09b1-4920-8cc9-355940250218 bp-a98b5c50-bddb-4693-9199-ecc500250218 bp-0089dc50-da47-4be2-8e72-0dc8f0250218 bp-57364330-d723-4f8d-85dc-f31250250218 bp-2dbcdad1-a7de-4835-ba86-335e20250218 bp-bc7ca88c-c9b2-453c-9774-537b40250218 bp-b98c0da6-12e5-4332-a6e2-4c8680250218 bp-c4e7ff86-5cc6-43d3-aac8-81ce90250218 bp-07fb322d-1f54-478f-8f2f-3db690250218 bp-9670fc71-d8d7-48db-805a-7e8a90250218 bp-862d4443-8773-48c8-a09d-de9780250218 bp-3a7354bc-3fec-44b2-a802-f54de0250218 bp-c6b3cfac-61e4-444e-88e3-02f220250218 bp-9fc98135-55df-4746-8fbd-dd5530250218 bp-422b8b89-a540-4cad-8c1c-d11a00250218

Will be grateful if someone can help me get to the bottom of this Thanks

Since updating to version 135.0.1 last night, all kinds of interactive maps have been loading like the pictured attached below. Even maps in pdf aren't properly loading, loading black pages. Everything works completely fine in all my other browsers.

Hi, I’ve been experiencing slow performance on Firefox recently. It takes a long time to load pages, and the browser sometimes freezes when I have multiple tabs open. I’ve tried clearing my cache and updating Firefox, but the issue persists.

Has anyone encountered similar issues? Are there any tips or settings I should check to improve performance on a Windows machine? Thanks for your help!

I'm very frustrated with FF. It's running slow. Downloads are slow etc. I've tried everything that FF has recommended up to and including "refresh" with no effect. It's getting to the point I'm considering not using FF. Does anybody have any suggestions?

Our Firefox sometimes stalls, and if we try to exit, to start fresh, it won't reopen, because there is a firefox process still running. The click to close Firefox has no effect on this background process. Taskmaster sometimes shows firefox processes, which can be closed, but that doesn't get everything. Sometimes a total hard shutdown resolves it.

Starting 4 or 5 days ago when entering https://bluehost.com in the URL field, the landing page for Bluehost stopped rendering properly. I cleared ALL browsing data without fixing the problem. Trying to open Bluehost in a private window did not fix the problem. Only opening Firefox in Safe mode solved the problem. After opening in Safe mode, I disabled performance enhancement including hardware acceleration - problem not fixed. The Bluehost landing page renders properly in Chrome, Edge and Opera.

This morning Firefox stopped working for every website I attempted to access. The window shows the "Unable to connect" error. I'm currently using Edge for the Mozilla site help pages. I've tried many of the help article procedures, including: 1) Removed and re-added Firefox in the Windows Defender Firewall settings; 2) Scanned PC for Malware (Webroot SecureAnywhere, CE25.1), no threats detected; 3) Cleared recent history from Firefox. 4) Opened Firefox in Troubleshooting Mode but the problem persists. 5) I've also set the Network settings to "no proxy". Windows settings is set to automatically detect settings Firefox was working last night when I was installing an old version of Quicken 2015 (off-line/non-network installation). What's my next step?

He said its down to some update which for some reason I dont have but in the attached image, he is able to add his own wallpaper in nightly but I am not for some reason. Would love some support

Today Firefox crashed twice and a Tab crashed once! What's going on with Firefox? It's especially disurbing to have it crash during a long video and then you have to find where you left off.