Firefox Community Forum

Hi, when I use YouTube.com and i find this on "https://www.youtube.com/results?search_query=blue+connection+touch+the+sky" I get this popup message ""This page is slowing down Firefox",etc.etc. What happened to the browser? Thanks!

Dear FF/Mozella staff,

  I have been using FF for many years with Windows 10, every time I launch FF it starts up, brings me to my start screen of favorites, and then shows itself still downloading on the top taskbar pane, but everything is already loaded on screen. The cursor will then not change to the hand pointer to follow links on screen. the bookmarks open to blank or unresponsive pages. Closing and reopening FF gives the error message that processes are still running and do I want to open a new window with FF, but that is unresponsive as well. 

back to internet explorer, Thanks for that

After half hour or so the browser for Youtube just hangs All the links are not connecting It shows up as arrow NOT hand It just hangs until you refresh the browser so you lose all the queues

I've had this issue for years, but it was always something I could live with. The Issue would only appear once every week or so. However, recently the issue seems basically happen on a daily basis.

After Firefox has been running for some time and there's a few other tabs open, The YouTube UI will periodically become completely unresponsive.

Just moving the cursor on top of Youtube will cause 100% + CPU in the Firefox task manager and the page is entirely unresponsive during that time (except video playback)...

This issue has persisted through reinstalls, new profiles and is also present without extensions.

This is a performance Profile of the Issue: https://share.firefox.dev/4kNlhKD

Any tips on how to maybe diagnose this are very much appreciated!

This problem just began today on my Win 11 laptop. Firefox is current - 139.0.4. Win 11 is current. No new software has been installed. Firefox hangs up and will not move. Task manager shows FF is consuming more than 90% of my 16GB memory. I must end the FF task to get up and running again.

I am on a MacOS 15.5 and the latest Firefox build. Opening this link https://adobe.ly/444sG14 leads to the heavy stutter of the Firefox window.

As the title says -- I can no longer save images or download files without Firefox locking up. Whenever I do, the window grays out, the cursor's "busy" animation starts up, any videos playing in Firefox at the time grind to a halt, and I have no choice but to close Firefox when the "This program is awaiting a response from you" error message pops up. Whatever I'm trying to save will get saved to my computer, but Firefox always freezes up.

I've tried updating Firefox, resetting Firefox, restarting my computer, clearing my download history, changing the download folder, running troubleshooting mode and a private window. I even tried downgrading from 137.0.2 (64-bit) to version 136.0 out of desperation, and even that didn't solve it. I'm running Windows 11 Home, and this problem has only started happening in the last few weeks.

Any help would be greatly appreciated!

After the last Mozilla update (138.0.1) the browser is now slow to load pages. You type in the website address or click on the bookmark and it takes minutes before the website begins to load. If you click on open link in new tab Mozilla freezes and if you wait it out 9 to 10 minutes later Mozilla comes good again and will open the link in new tab. No issues occurring before the 138.0.1 update. How can I roll back to the prior release?

Win 11, latest FF version. A few addons, that never cause problems.

Firefox keeps freezing. I've checked Task Mgr, Event Viewer, Troubleshooting - and cannot find out why this is happening.

Restarted 3 times, but when I open outlook.com, the mail freezes. Open tabs keep freezing, so I'm unsure the culprit.

Firefox just keeps getting slower and less responsive. I've cleared the history etc and run my Avast cleanup premium which helped a little, but the other browsers just put it to shame. I hate to switch because I love the user interface, but............ its just frustrating. Windows 11 latest updates.

This happens a lot all of a sudden. It used to say something like this "script is slowing down the page" or "page is slowing down browser" but it's only Outlook/Hotmail.

It's super annoying. Any fixes?

Thanks.

OS: Xubuntu 24.04.2 Apache: 2.4.58 Firefox 137.0.1 and earlier

In general Firefox is working. However, after every update, both major as well as point releases, where Firefox updates and then restarts itself, it almost always starts up and displays the homepage (local page on my machine) but is completely unresponsive. It will not load a locale or a remote page. I can kill all running firefox processes and then manually restart the browser -- with the same behavior. I have discovered that if I wait for around 10 minutes or so, then the browser starts working and continues to work just fine until the next update. Once past this initial update wait, I can kill/restart the browser, reboot, etc. and Firefox is responsive. It is only immediately after the updates that this problem occurs. This has been going on for at least the past six months or so, but is new behavior that didn't exist prior to that. This isn't a show-stopper, but it is very frustrating.

Any suggestions.