Firefox 社群討論區

Hello!

Switching between tabs used to be instant. Ever since updating to v133, it takes over a second (both through the Ctrl-Tab shortcut and through clicking on another tab in the tab bar), which is really really bothering me.

The tab bar has also started taking over a second to react visually when I hover over it with the mouse, even with thumbnail previews disabled. I have no idea what's causing this. Please help.

Performance profile here: https://share.firefox.dev/4gpjqZA

I tried all common troubleshooting steps: deleting cache reinstalling different settings turning off adblocker/vpn disabled efficiency in task manager and set it permanently to off in FF

I used to have 1000+ tabs in 2016 no issue. I had problem in past with Firefox using 100% CPU which now it is not using only like 50, but memory is getting full 89% i use also large page file on ssd. Problem is even when i restart firefox it is slow with low RAM usage! SO that's not it! Even 5 tabs sometimes it is slow!

It is so damn slow it drives me crazy! I tried also Quantum in past when Firefox has 100% CPU usage bug and it was only tiny bit better but still caused 100% CPU usage!

All other browsers are anti user cannot even stop Autoplay literal terrorist Firefox is only normal browser unfortunately performance compare to 2016 got absolutely abysmal! I had this problem even in-between reinstals of OS so it doesn't seem it is me. I play demanding games no issues on my PC...

The website WSJ has large areas on front page, including the opinion listing, are simply white and not 'there' on the page to click on. I've deleted their cookies without effect, tried turning off all adblockers, shut mac down to reboot, nothing seems to have an effect. This is a recent glitch of only several days, prior performance was great. Thanks!

Firefox on MacOS in full screen mode makes the black offset between the screen edge and the Firefox window after logging in after MacOS is locked. It fixes itself when you exit the full screen and enter it again.

How to reproduce?

• Open Firefox and enter the full screen mode
• Close your MacBook and wait until it prompts you for your password or touch id
• The Firefox window has black offset between screen edge and the Firefox window, that was not present before
• Exit the full screen and get into it again, and the offset is gone

12/12/24 - netflix says i need to upgrade firefox browser in order to watch vis, but running MOST current version (115.18.0esr). Mac OS 10.12.6 . need help fixing issue. thanks

I first noticed this issue on "Zen Browser" which is based on firefox source code, but some time after i re-installed Firefox and noticed the issue was on Firefox, like, literally the same lag that happened on Zen was happening on Firefox. I tried deleting the .mozilla(.zen for Zen) and still nothing. i did noticed some things:

- When i start Firefox on safe mode, the lag doesn't happen
- On my brother user on the PC, the lag simply didn't happen
- When the lag is happening, the disk reading goes REALLY high: 

I'll put a screenshot of the disk reading usage, even if it's on Zen executable, remember that the same issue is also happening on Firefox (and was where i noticed the disk usage thing)

Been using Firefox since the 90s and been on Mac since 2000s. This problem has been happening for about a year, throughout three macbooks (my old one, a temp one, and my new one) and multiple Firefox updates. I'm always updated and always clear cookies daily.

The failure to move bookmarks I can overcome by rebooting Firefox with a Forced Quit. If I only have to do this every few weeks, then no biggy reinserting all my passwords for all the different sites I use (and no, I don't want to use password managers, I don't trust them)

Today it happened within hours of Force Quitting Firefox, this is too much!!!

The only reason I didn't report this problem earlier is I simply expected an eventual newer version of Firefox to fix this bug.

Firefox 133.0

Normal behaviour: click-drag bookmark within bookmark menu pull-down to position where I want bookmark Failure behaviour: click-drag fails to move bookmark, until I reboot Firefox, then it works again

I cannot enter any text when I load firefox. The cursor just sits there blinking. Finally firefox unlocks and I can type. Like this questionaire I'm typing. I have been on this page for almost ten minutes trying to fill out this form. Now I can type something. If I stop, Firefox may lock up again. What is happening?

Microsoft recently decided to update Firefox, since when I have found it unusable, particularly where accessing my webmail (on Vox) is concerned. I tried going back to an earlier installation of Firefox and reinstalling that, but still have no luck. Please tell me (although not by email, obviously) how I may access my emails. Telephonic communication is difficult because of weak or often absent signal, but people seem able to reach me on WhatsApp - same number: [edited phone# from public support forum]

firefox has been eating up all of my monthly data in 10 days for the last 3 months. As far as I know I am not doing anything differently than the previous 3 years. In the past 2 days Firefox has used 1gb of my monthly 10gb. Thanks in advance for your recommendations Ken

I would like to reiterate everything said below. This needs to be a standard feature. This seems like a no-brainer and should be a standard function on any browser. It only shows that Mozilla is getting left behind, even Edge has this feature, what makes it worse...IE had this feature and that is considered ancient tech now. from: kenmendell Now that I've got you and we're on the subject, Firefox seriously, MOST seriously, needs to bring back the "Bookmark All Tabs" command and have a "Save All Tabs" command of its own. There are no third-party apps and Add-Ons that do this very well anymore or at all, the older ones that used to do this no longer work well or at all. Firefox needs them in the browser to stay. It's never been the same without the "Bookmark All Tabs" command and trying to "Save All Tabs" the same way you would save a single page with "Save Page As" is frustratingly impossible to do. Any older Add-On or program that did this no longer works well or at all and hasn't for almost a decade or longer. It needs to be a standard function of any advanced browser. Firefox needs these functions as the normal standard. So, bring this up with your design team as an imperative because my having to migrate to these other lesser capable browsers the way others have doesn't appeal to me when Firefox should be a decade beyond their design and development, especially for functions that shouldn't be difficult hurdles for any modern browser to have.

I've tried everything under the sun that I've seen other people suggest for this problem like custom scripts and altering the config but no matter what I do Youtube just doesn't load videos AT ALL any other video streaming site works wonderfully like Netflix and Youtube works on explorer just fine if anyone has a solution or even just an explanation as to why this is even happening it would be greatly appreciated.

Every time I boot/wake my computer, it takes at least 5-10 minutes for firefox to connect to the internet. I can open chrome or edge just fine.

I've tried reinstalling firefox, i've checked my win11 firewall settings, I've ensured that i'm not running through a proxy and have checked DNS.

Please help!

I have been experiencing severe performance issues with video playback on Youtube. Videos are subject to heavy lagging, and its not just the video, but the entire browser starts lagging. This doesn't happen every time, once every few times. This only occurs on Firefox, and I didn't experience this on Chrome or other browsers. Any help would be appreciated.