Firefox Community Forum

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.

It is consstantly freezing up. Sometimes if I click the x the window will refresh but that takes a minute or two. Mostly all I can do is close everything and start over.

I wish you answered the phone. I waste soooooo much time trying to fix this. Chrome doesnt do this

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.

Hi there, I have this issue when I move tabs in scrolling tab bar. I can't move tabs smoothly, I have to keep moving up and down with the tab till the end. This issue is with multiple Linux systems.

I'm currently using MacOS 15.4.1 Sequoia with FireFox 138.0.1. It works fine after updating from 138.0.0 on my primary (Administrator) account. However, there is a second User account on this MacBook Pro laptop, used by other family members. All is not well here... Firefox updated itself from 137.0.0 recently and now will not run on the User account. On startup, it asks for an Administrator password to install a Helper tool and then will proceed no further. I have tried :-

Making the User account into Administrator - still hangs Cancel and re-start FireFox - hangs! Re-start the MacBook from cold - hangs! Cleaned Firefox installation and folders in the User Library (both User and Administrator) - still hangs! I'm aware there are two Library folders, one each for the System and one for each user, didn't touch the System Library. Added a new User account - it works! So maybe something in the System Library is the culprit? I've always regarded that area as "off limits" to us mere mortals, so please, not the "Wipe it and Start Again" option.

I don't really want to kill the User account, there is a lot of data in there and surely will miss something important if I delete it.

Summary, 137.0.0 worked, it updated to 138.0.1, it hangs up! I am unable to fix it. Any offers guys?

When trying to do a search for a video in YouTube Studio, the search seems to freeze. Doing a similar search in Microsoft Edge works OK. This problem started happening several months ago. I've tried clearing the cache for YouTube pages.

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?

Do I need Firefox 78.0.2 (x64) and Firefox ESR (x64)? Also I noticed I have noticed a very slow startup. I have an old Dell Vostro 460 PC. I also did a Task Manager and noticed five Firefox process. Can I shut some of these down?

Thanks, Irv

Respected Sir/Madam, I found a problem to use Mozilla Firefox (137.0.2 (64-bit)) on Windows 10, problem shows in attachment.

Already uninstall Firefox and reinstall it but problem not solved. After restart PC Firefox works and it browsing speed is very very slow but after close Firefox problem start again.

Please give me the solution. I am a die hard lover of Mozilla Firefox.

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!

Firefox has been running incredibly slow. I currently only have this window open, but if I open my task manger it shows 10 Firefox windows running. If I right click and end task, it will end the task, but shortly there after a new one will pop up. 1 of the is running in efficiency mode. I assume this is what is slowing down performance, but I do not know how to fix.

Please tell me why this happens daily. I cannot access my laptop after a break at 10:00 am..... for some reason, Firefox freezes, only thing that will work is the Chrome browser.

Dear Mozilla Support Team,

I hope you're doing well. I'm writing to request a feature enhancement for Mozilla Firefox that would greatly improve the user experience, especially on lower-end or older hardware.

Currently, whenever I open Firefox after closing it, it takes about 2–3 seconds to launch. In comparison, Microsoft Edge opens almost instantly due to features like Startup Boost and background mode, which allow it to keep essential processes running even when the main window is closed.

I would love to see similar functionality in Firefox — such as:

An optional "Startup Boost" feature to keep Firefox running in the background for faster launching.

A tray icon mode that allows Firefox to stay running in the system tray instead of closing completely.

A setting to allow background updates or session prep on startup/login.

These additions would make Firefox even more competitive in terms of performance and convenience.

Thank you for your continuous efforts in maintaining a privacy-respecting and open-source browser. I truly appreciate your work.

Best regards, RIYYAN AMIR