Diễn đàn hỗ trợ Firefox

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.

I just read a PC World article concerning extensions containing malware. AdBlock was listed and I've been using the extension for some time. Are you aware of this issue? Is the extension available viz Firefox setting/extensions in question. Should I remove it?

Attn: Customer Support

  Firefox is currently my "default" browser.  I am running the most current updated Firefox browser.  I am using a desktop iMac with OS of Tahoe 26.1     
  It appears since the latest few updates (on Firefox) over the last week or so, I can no longer log in to my online banking.  I am able to enter my username and password (I'm using the 1Password app on this desktop and my iOS).  After entering my username and password, the progress wheel just spins and spins and nothing further happens.  The screen just sits there and does not progress to the next webpage allowing entry to my banking.  I know that it is a problem with the Firefox browser.   When I log in to my online banking using Chrome, I have no issues, it logs right in.  
  What is going on?   Please advise.  I'm thinking about ditching Firefox and going with Chrome or Safari.

Thanks for your assistance Dennis Ontario, Canada

After running updates and restarting my computer, I am no longer able to open my common websites used frequently. I don't know how to fix this problem. The search bar runs until it times out.

In Australia, the Government Weather Bureau Service website site is WWW.bom.gov.au. When try to connection to various pages on this website, it can take up to 15 secs for page to appear. If I use Chrome, this problem does not occur. On searching Google, one suggestion is the fact that WWW.bom.gov.au only allows unsecured access ie. only allows http:// access not https://. Is there a setting in Firefox which will allow both types of access? I have tried in Settings/Privacy&Security/HTTPS-Only Mode to allow exceptions, but this does nothing. Any advice please. Regards Michael

My Firefox sometimes freezes in the evenings when using AOL Mail and Facebook. I put this down to my old and slow PC. But I now have a brand new PC working on Windows 11 and all seemed fine, but it happened again this evening. I then logged into Facebook using MS Edge and it was working fine.

After running cc cleaner and even that i de select the book mark and side setting the Firefox Bookmars and history is non functional . i did create a new profile yesterday biut today i have the same Issue. I uninstalled CC CLeaner but i want to restore my Bookmarks system i need help with that. the explanation here are not really helpful

With the latest update to Firefox, 147.0.1, our test suites run with the extension, Selenium IDE, has errors, "Failed:n.createEvent(...).initKeyEvent is not a function". I am running the latest version of Selenium IDE. Installing the previous version of FF has no errors. What is the solution?

All of a sudden today yahoo will not load I am able to load fine with edge I keep trying and sometimes it will partially load..I've used firefox for years along with yahoo wth zero issues..please help I have cleared browsing history etc to no avil

When I start Firefox on Windows it does not open all the Windows it had last time even though that option is selected in settings. It seems random on which Windows open.

Then I start one Window at a time and restore my tabs from bookmarks. Once I have done that I have all the Windows in the order I want, with the tabs I want.

Then for no apparent reason some of the Windows disappear and/or the Windows change order. This is very frustrating.

How do I get Firefox to always open the Windows in the correct order and keep them displayed in that order?