Firefox Support Forum

We are using a website designed for Firefox, and when we use the "print" function within the website tool bar, on one of our PCs, it always defaults to a print preview which states "Printing from Win32 Application - Print". We have "print.always_print_silent" set to true, on this and all of the other PCs using the website, but only this PC has the issue. We can't figure out what is making it pop up the print preview.

I have a very fast internet connection, 200 mbps and everything else on both my laptop and my mobile phone are working fine but Firefox is very slow. Pages load ok but videos will play for a short time and then freeze never to continue and downloads are painfully slow, 2 to 4 mbps. Edge and Chrome download normally and videos play with no issue. I need this fixed or Firefox is going bye bye!

Facebook works fine on iPhone and iPad, and on Chrome on PC. Crashes ("Gah, your tab just crashed") when opening Facebook tab have been happening for a few days now. Also, when closing Facebook tab from Firefox, PC crashes (black screen) and reboots. Many other Firefox / Facebook crash complaints already made to Firefox, but not fixed. Pls fix urgently or I will be forced to cancel account, uninstall Firefox app and use MS Edge or Chrome as my default browser.

Bonjour, Hello,

I contact you because, even without an adblocker, Youtube is very slow with Firefox navigator. I don't understand why and I don't have this problem with Google Chrome ? Fews years earlier, I never had this problem with slow Youtube when using Firefox Navigator. I don't know if the problem comes from Youtube or Mozilla and I contacted both of them.

Thank you.

Bonjour,

Je vous contacte car, même sans bloqueur de publicité, Youtube est très lent avec le navigateur Firefox. Je ne comprends pas pourquoi et je n'ai pas ce problème avec Google Chrome ? Quelques années plus tôt, je n'avais jamais eu ce problème de lenteur avec Youtube lorsque j'utilisais Firefox Navigator. Je ne sais pas si le problème vient de Youtube ou de Mozilla et je les ai contactés tous les deux.

I'm having problems with Firefox using 75% of processor capacity. In "top" I see many instances of "Isolated Web Co".

At the moment of this screen shot the processor is not overwhelmed, however, it will sometime jump up to 75% and the system will seem to freeze.

What is the "Isolated Web Co"? I'm thinking a virus.

Thank you.

Mozilla account in Firefox PC browser always asks to re-login every 1 day. This problem appeared after updating Firefox from version 119 to 120 and 121.

As in the image below, "Account Disconnected" and a triangular warning appears in the Firefox menu bar. I can't access any sync data like passwords, bookmarks, plugins if I don't re-login.

I only use this mozilla account on 1 PC.

Why can't Firefox copy text to the clipboard anymore? It won't copy text from a web page, from a URL, or even from about:support "Copy text to clipboard"!!! I'm using version 1.22 64 bit on windows 11. I've reinstalled Firefox but it doesn't make a difference. I've tried "Troubleshoot Mode" and it's still broken!!!

I can paste into Firefox but something has broken copy!

I continue to have low volume issues when trying to watch youtube videos. Other videos are fine. Firefox is up to date, Windows 10. I've tried a couple of sound add ons for Firefox, and nothing seems to fix this issue.

Had an update for Firefox happen last night and now the Duck Duck Go extension will not work. Just goes search not found?

Here is the error - There was an error displaying the search results. Please try again. When I turn off the extension Firefox runs fine.

I had turned off the extension first and turned back on same issue. Removed extension and reloaded same issue. Restarted router same issue. I have uninstalled Firefox and then reloaded same issue with Duck. Duck Duck Go works in my Edge browser

Perhaps I am the only one experiencing this issue but it is causing such an issue for me that I am afraid I will need to abandon this browser. I never in my life thought an internet browser displaying the forums for the browser would require so many processes.

Am I the only one? I have a pretty basic experience going on here but this is causing such a struggle I might need to find a new browser. I just don't understand how this even gets to be this way.

I am very grateful for a couple of advantages this browser occasionally showcases and I really don't want to migrate to another browser across my devices. All of the options I have read in this forum are pretty much disabled by the updates to Firefox but I am willing to try just about anything within reason that won't be quickly screwed up by another update.

My apologies if I sound frustrated, but come on that's a lot of processes to show your support page and it's eating up so many resources that could be used to trouble shoot my projects in a timely manner. This impacts performance to the point that I can't watch a tutorial with nothing else going on while working with GDevelop.

After the latest update to 125.0.2 (64-bit) the browser works fine for a few minutes and then pages won't load. It starts working again after a restart [ for a few minutes]. I have cleared the cache & data. Chrome works ok.

Last night, when I got home from work, my Firefox browser wouldn't let me make any Google searches or log into my Google account. It just keeps coming up with the end of file error. I've refreshed Firefox, created a new profile, turned off Proxy, uninstalled NordVPN, and even tried to uninstall/reinstall Firefox. After refreshing, I can sometimes search with Google for a little bit until I try to log into my Google account or navigate to Gmail while not logged in. It also won't let me access Yahoo.com, it seems. It will do random websites, though. For example, I entered the url for a video game forum I've browsed in the past and it loads that okay. Any suggestions? Do I have a virus or something? I honestly can't figure this out.

My online pharmacy, connected to HumanaCenterWell, no longer opens in Firefox. A message "forgerock, redirect_uri_mismatch" appears. It did work until a few months ago and it does work on Google.

I use Firefox for Mac. Often when I want to click on a link or complete an on-line form, a long list of unwanted suggestions pops up and orevents me doing this. Only by hitting Escape can I get control back.

By the way, I don't want any solution which involves clearing the cache, as I value that help.

Firefox use a lot of CPU time ( it reaches 100% ) while watching youtube videos in 720p on Windows 10, and videos lags and stutters too much. Not using any ad blockers, non of plug-ins are on. It does work just fine on Ubuntu on the same machine Vids also were working fine on previous popular web browser known for its spyware

Using hardware acceleration is on in browser settings. Specs are: CPU: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz 4,00 GB x64 Windows 10 Home edition 22H2 GPU: NVIDIA GeForce GT 635M

Firefox version 120.0.1 (64-bit), up-to-date

Hello! I need some help. Every since 4-6 months ago, Firefox has been extremely slow when I boot it up at first, with some page load times taking more than 10 minutes. Some fixes have seemed to work, but they never work permanently. From my testing, it is not the result of any extension and the issue persists in troubleshoot mode. What has not helped my testing is that, after enough restarts of Firefox, the problem goes away and web pages load quickly, so this has caused some false positives. Has anyone else had a similar problem they were able to fix? Should I try uninstalling Firefox and reinstalling it?

Hello,

I have been using Firefox Mozilla for many years. This morning it opened up fine. Then this afternoon (Dec 7, 2023) it would not open for me and when I try to open a new tab it says that it crashed.

I looked and I do have Firefox as my start up browser in my settings. Thank you for any advice on getting back to my favorite browser.

Sincerely, Sandy