This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Last Update caused slowness and video lagging. What can I do to fix this?

  • 5 amsoshi
  • 2 sa na da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga FredMcD

nocterum
nocterum
more options

Ever since the last update, my browser has been really slow at random times.

  • youtube videos are choppy/laggy, especially if I move the cursor while the video is playingor if I try to press the play/pause button of the settings button, it lags/hangs up
  • scrolling lags as well
  • sometimes on reddit and othwer imageboards, it takes forever for gifs or images to load

Clearing cache does not fix this, I end up closing firefox and clearing cache multiple times throughout the day and this is time consuming

Ever since the last update, my browser has been really slow at random times. *youtube videos are choppy/laggy, especially if I move the cursor while the video is playingor if I try to press the play/pause button of the settings button, it lags/hangs up *scrolling lags as well *sometimes on reddit and othwer imageboards, it takes forever for gifs or images to load Clearing cache does not fix this, I end up closing firefox and clearing cache multiple times throughout the day and this is time consuming

All Replies (5)

FredMcD
FredMcD
more options

Sounds like the computers CPU is being overworked.

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

nocterum
nocterum Mai mallakar tambaya
more options

FredMcD said

Sounds like the computers CPU is being overworked. Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there? https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

The CPU isn't being overworked, firefox takes up about 350,000k-450,000k and when only firefox is running, my CPU is at anywhere from 13%-25% I wouldn't think that would mean the CPU is overworked.

I just ran it in safemode with no difference, like I said before, it's hard to tell because the lagging happens at random times. I'll switch it to safe mode next time it is having a lagging episode.

I tried switching to 64bit mode, so hopefully this fixes it. I had switched to 32bit mode because flash stopped working several months ago, and this lagging problem occured after the update for the 32bit (52.3) was installed. Could 32bit ESR version have caused the problem?

FredMcD
FredMcD
more options

nocterum said

Could 32bit ESR version have caused the problem?

No way to tell unless you install a different Firefox.

nocterum
nocterum Mai mallakar tambaya
more options

FredMcD said

nocterum said
Could 32bit ESR version have caused the problem?

No way to tell unless you install a different Firefox.

Yeah so I i have been using 64 bit and have the same problems. I ran it in safe mode when there was lagging when tryign to pause and play youtube videos and the problem didn't occur in safe mode. Where do I from here?

FredMcD
FredMcD
more options

Type about:preferences#advanced<Enter> in the address bar. Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

In Firefox 55, the hardware acceleration setting moved from the Advanced panel General tab to the General panel, under the new Performance section. You first have to UNcheck the "Use recommended performance settings" checkbox to see the "Use hardware acceleration when available" setting.