Diễn đàn hỗ trợ Firefox

My Firefox opens pages slowly every time after I used it for months, and clearing the cache doesn't help. However, if I create and use a new profile, it gets fast again. What could be the problem?

In Email, with every other click on a mail item, I get the message "Firefox is not responding." After 15-20 seconds the mail continues, but the same thing happens again, and again. Checking the mail is nerve wrecking.

In the past three weeks, I have been experiencing issues with the Firefox browser on my iMac MacOSX. First, the browser, after some amount of time of usage, seems slower. Second, if I keep windows with multiple tabs open overnight and then try to use them, they don't seem to function. The YouTube videos will not play. I can't move the tabs. I need to close the tabs and window altogether to get YouTube to function. Lastly, as of now, I can't even select and move tabs. I have never experienced this problem with Firefox on my iMac.

Prior to this I don't remember having these issues. What has changed?

My laptop set-up is practically identical to that of my PC, but the latter doesn't exhibit the same malfunction.

I've tried anything I could, including reinstalling the browser, removing all of my bookmarks (about 10,000) and addressing extensions (Decentraleyes, Default Bookmark Folder, Disable Tab Detach, Flagfox, I don't care about cookies, Keepa, Notifier for Gmail, Privacy Badger, To Google Translate, uBlock Origin, Undo Close Tab, Video DownloadHelper and Youtube's Annotations No More), but not even safe mode improved the situation in the least. Windows Defender also hasn't detected any malware and my web surfing habits are as safe as it gets.

The only deeper data I could gather is that the problem manifests with a progressive, rapid surge in CPU and RAM usage; the former, for example, is saturated to its total 16 GB in a matter of about 20 seconds.

My laptop is a Dell Inspiron 7586 with Windows 11 64 bit; Firefox version is the latest, 100.0, and, by the way, none of the recent updates has improved the situation.

Thanks to anyone who might come up with an educated guess!

Ever since I updated, typing has become incredibly challenging... There's big delays in the words showing up, letters come out in the wrong places, & it doesn't improve even when I clear cache, clear memory, & refresh pages. I don't know what else to do. Should I delete and re-install Firefox, or replace this with the previous version?

When I use firefox, it gets slower and slower over time to the point where it's a chore just to type. And this is on a recent MacBook pro. Everything else is fast. But Firefox gets unusable. The UI should not be a bottleneck like this.

Retarting speeds it up for a while, but then it gets slow again in a few hours.

Is there some kind of profiling I can run that I can use for filing a bug report?

Just today, firefox began slowing down and soft crashing for minutes at a time. During this time, I can interact with websites, but it doesn't change the visuals or show that anything has changed. new tabs open but don't show up, youtube video audio plays but the screen remains fixed. Firefox usage for just 7 tabs is well over 5 gigatybes of ram and 10-20% cpu at all times.

I attempted everything on the help page, including: killing and restarting firefox, updating firefox, updating windows, restarting my computer, killing firefox and rebooting again, disabling extensions, and updating graphics drivers.

after rebooting with the new windows update, firefox ran smoothly for a brief minute and showed normal cpu/ram usage, but quickly climbed back up to pre reboot numbers.

Hellow,

Since updating the latest firefox version 91.01 it has considerably slowed down browsing speed to an impossible crawl. The task manager shows the update as permanently on, sucking 100% resources. There´s something not right when it does this, and is becoming a bad habit of constantly refreshing firefox to get sensible operation.

It started by installing a clear cache which helped as firefox also hangs when connecting to the internet as a result it goes off-line at random times. Barely ideal. 

Is it worth rolling back to an earlier version that is more stable ? Any other users got debugging suggestions ?

rJ

Can you put one of those hourglass "wait" symbols to show on the next update because I never know if Firefox has booted or not and if you hit it again, it corrupts the next boot and wastes a bunch of time.

For quite a while I am using Firefox and had no issues, but recently, with new version , I am constantly facing two issues 1. the initial load of a page takes more then 30 seconds , sometimes 1 minute, but after the first page has been loaded if I open another page , it will be as usual 2. Completely random and without any sign of slowing down the OS - the OS freezes - nothing works at all and I have to restart it using the power button. ( and this happens when Firefox is open so I doubt Firefox)

version Firefox Browser 91.0.2 (64-bit) Mozilla Firefox for Ubuntu canonical - 1.0

Hi, since the last update, Firefox is taking a huge amount of memory and slowing everything else on my PC right down. Right now this support tab is the only webpage I have open, yet you can see in the screenshot there are 31 Firefox processes running, and over 1G of memory being taken. I've followed all the help threads and taken the steps in them - it's made no difference. Please can you help me find a way to tame Firefox. Also - I'm really not an IT expert at all so please can you tell me in very simple language :)

It doesn't crash every time, but when it does, if I restart and try to save image/video/etc. again, it will usually keep crashing a string of times before it finally allows me to download without going "Not Responding" and at which point I have to force quit.

I've tried browsing other solutions but nothing seems to work or be applicable. I'm running Firefox 78.15.0esr (64-bit) on an El Capitan 2010 iMac.

Thanks for your help!

I am hoping someone from Firefox Development sees this and that something can be done for those of us who need to have several tabs open simultaneously. I often find myself engaged in research that for convenience requires that I have several tabs open which eventually leads to browser slow down, hanging, and sometimes a crash. Im convinced this is the correct analysis since defragging the ssd fixes it every time. I believe it would be very helpful if Firefox were to add a compressor to its file storage routine, first blush thoughts, possibly one compressed file per tab. When I get into heavy research I find myself defragging sometimes several times in a day, which temporarily fixes the problem. Any chance this can be added, or if anyone knows of a fix to this issue? rgds, j

FIX what seem to be CLEAR conflicts with relationship between platform and user's device (desktop, Dell Optiplex 790 in my case - that do NOT occur with Opera, otherwise) as WELL as aforementioned ATROCIOUS performance quality - BTW, this is the SECOND update / upgrade I've done in LESS than a WEEK.....

I am getting more & more frustrated and exasperated, as simple browsing has become tortuously slow, with many sites taking forever to load, or only partially load, or have to be refreshed a couple times, to finally get it to load. And videos constantly freezing up, despite lots of free RAM, and a very high-speed internet connection. I assumed whatever was causing this would've been addressed in the last update, or two, but no, it's only getting worse.

This past week I have noticed while using google workspace it seems as firefox will time out. This causes my gmail to show errors because it is not connected any longer. It also seems that when this does happen I can't do anything through the firefox browser such as search or browse the internet until I completely close and re-open firefox. I would like to know what I can do to resolve this issue. I have refreshed, uninstalled and reinstalled, and tried about:config settings that handle "timeouts". Please I need assistance asap with this issue.

Hello!

I got this issue when i am clicking on input tools (on screen keyboard) on google search page,it opens up with a 3-5 second delay and this problem started after i installed version Firefox 90.0.02 64 bit.

My OS is Win 10 64bit. All updates except KB5004237 are installed.

I do have a couple of add-ons like Default Bookmark Folder and uBlock Origin and i even disabled them but still the issue stands with input tools delay.

I also refreshed my Firefox but that didn't help either.

Any solutions to this issue?

Every now and then my firefox does not respond when I click on any links on any webpage. It only works when I clear the browsing histories and cookies for last hour. This happens like every 15-30 minutes and is very annoying that I have to keep clear off the history.

Hello Firefox Team,

I use Windows 10 - 20H2 version and Firefox latest version.

In the last time, i got error on firefox. firefox cannot display some websites. Firefox is experiencing a delay in responding.

For example myvideo: https://youtu.be/jILxKYqspew

Step 1: Visit : tmconsultancy.com or denetcilerymm.com.tr (any website) Firefox: waiting response Step 2: open edge and visit tmsconsultancy.com (fast response) . I have been experiencing this error for the past 1 year. I completely force uninstalled Firefox and clean installed.The problem was not fixed.

However, i do not use any plug-ins or virus programs(on firefox). This problem is very annoying.

Can you help me please?

Regards

For 3 days now, I have not been able to view or use anything in my Facebook account. The page would drop the internet because it was too slow. I have tried various things from support and also received 1 from the community. it has not worked so I am going to switch to Microsoft Edge because I did not experience this problem with ME. I have used Firefox for years but the slowness is very annoying. I will try it again in the future. Thank you