Diễn đàn hỗ trợ Firefox

Hi Can you please help i have tried everything to get rid of this message i have uninstalled and reinstalled i have constantly refreshed and nothing helps,I get the message The bookmarks and history system will not be functional because one of firefoxs files is in use by another application also for quick access place your bookmarks here on the bookmark toolbar. I am not very technical but it is driving me mad please fix this for me Thanks

McFee is trying to sell us computer protection. We have had Firefox for several years. I am now getting an alert to Turn On Firefox. How would it get turned off, and how do I turn it on without going through Mozilla's selling site?

Hello there

I'm running version 146.0.1 (64 bit) on a Windows 10 machine, and I've found that trying to use printscreen now opens Firefox. I cannot discern why, if it's a Windows setting or a keyboard issue or anything else

things I've tried:

- Disabling every extension - Disabling AMD Radeon - Disabling ShareX (My normal screenshot program) - Factory resetting my Keychron Q6 Max (in case there's some weird macro that got set up)

Any ideas? This might not be a firefox issue, but I figured I'd ask here. Thank you

REPEATING IMAGES involving . Macbook Air M4 Tahoe 26.2

When sliding from the primary Mac screen to another on the same computer the Firefox image (and ONLY that image) is duplicated on each additional screen image loaded making the use of multiple screens virtually useless.

[edited email from public community support forum]

So, after using firefox in the background to browse websites or watch videos I checked my memory usage in firefox with about:memory -> Measure and saw that youtube was consuming a decent amount >2GB (checked the main url when clicking the youtube src, it was the video on that sole tab i was watching and nothing else playing youtube in the bg) so i closed that tab, waited a bit and re-measured but then see that the memory usage for youtube rose about 200MB... and the website for youtube is that same url for the tab that i just closed (when checking the src in the results for Measure). I've been revisiting the about:memory page, reloaded it and re-Measured and youtube is STILL THERE. Even now, 10 minutes later i still see youtube there, with none of my tabs running youtube.

If i close firefox entirely and re-open my tabs then it'll very likely fix it but this has to be a major issue no? I shouldn't have to close the entire browser program just to fix a website visit, which is youtube of all websites.

As of this moment, firefox, with 8 tabs open, is consuming 4,452.99MB (~4.5GB) where 2.5GB is youtube for that page i closed.

I don't know if sharing memory reports from the about:memory page give my cookies away or leave me open to a similar vulnerability so I won't share it unless a dev or similar asks for it but for now, I've included an image showing all the tabs i have open on firefox, 2 windows.

hey My name is Moji and i was 17 years user of firefox. my mozilla after last update became so slow when i open it and seems crash. my screen frizing for 3-4 mins and i dont know why? could you help me what can i do???? please answer my question to my new gmail : [email address]

Developer edition seems to be blocking Today's Deals when browsing amazon.com. Regular firefox does not do this. Suggestion on what to do to fix it.

Also trying to browse distrowatch give the following: Warning: Potential Security Risk Ahead.

I just installed Mozilla VPN but when it's active my internet connection stops working. Pretty sure whatever protocol it's using is the problem with the WIFI signal, but I can't find how to change the protocol like every other VPN service allows. How do I change the VPN protocol? There is strangely no article already on this site for this common problem.