본 사이트는 여러분의 사용자 경험을 개선하기 위해 유지 보수를 진행하는 동안 기능이 제한됩니다. 도움말로 문제가 해결되지 않고 질문을 하고 싶다면 Twitter의 @FirefoxSupport 및 Reddit의 /r/firefox 채널을 활용하세요.

Avatar for Username

Mozilla 도움말 검색

고객 지원 사기를 피하세요. 저희는 여러분께 절대로 전화를 걸거나 문자를 보내거나 개인 정보를 공유하도록 요청하지 않습니다. "악용 사례 신고"옵션을 사용하여 의심스러운 활동을 신고해 주세요.

자세히 살펴보기

이 쓰레드는 보존되었습니다. 만약 도움이 필요하시면 새로운 질문을 올려주세요.

Firefox really slow, consuming too much CPU, tried everything

  • 1 답장
  • 46 이 문제를 만남
  • 3 보기
  • 최종 답변자: Happy112

Johan Hartmann
Johan Hartmann
more options

Alright so I was testing out Avira Phantom VPN and installed it, which included the Avira Connect app and the Avira Browser Security plugin.

Then I restarted Firefox and it started working slow as hell and consuming way too much CPU, 10-25% when idle. It's literally unusable at the moment.

I tried rebooting my computer, didn't fix it.

Uninstalled all Avira software, still slow and consuming too much CPU.

Started Firefox in Safe Mode where it works fine, and removed the Avira plugin, nothing.

Then I disabled all the plugins, no changes, still slow.

Then I uninstalled Firefox and reinstalled it, no effect.

Ran Firefox in Safe Mode again and removed the "content-prefs.sqlite" file incase it was corrupt. Nothing.

In Safe Mode I tried to Refresh Firefox, it had no effect.

I uninstalled it again, and ran CCleaner to clear out any temporary files and registry entries that might be causing problems. Reinstalled it as 64-bit instead of the default 32-it, and I'm still having the same problems.

Any suggestions?

Alright so I was testing out Avira Phantom VPN and installed it, which included the Avira Connect app and the Avira Browser Security plugin. Then I restarted Firefox and it started working slow as hell and consuming way too much CPU, 10-25% when idle. It's literally unusable at the moment. I tried rebooting my computer, didn't fix it. Uninstalled all Avira software, still slow and consuming too much CPU. Started Firefox in Safe Mode where it works fine, and removed the Avira plugin, nothing. Then I disabled all the plugins, no changes, still slow. Then I uninstalled Firefox and reinstalled it, no effect. Ran Firefox in Safe Mode again and removed the "content-prefs.sqlite" file incase it was corrupt. Nothing. In Safe Mode I tried to Refresh Firefox, it had no effect. I uninstalled it again, and ran CCleaner to clear out any temporary files and registry entries that might be causing problems. Reinstalled it as 64-bit instead of the default 32-it, and I'm still having the same problems. Any suggestions?

선택된 해결법

Hi   ! Are you by any chance running Bitdefender Anti-virus  ? If so, you may want to disable it   -   see this bug that was just reported :
https://bugzilla.mozilla.org/show_bug.cgi?id=1363317
According to your system details you are using the Multiprocess feature, which might be causing this problem as well.

You could turn it off as follows : Type in the address bar about:config (promise to be careful, if asked) Type and search for the preferences : browser.tabs.remote.autostart and set it's value to false browser.tabs.remote.autostart.2 and set it's value to false Note: the exact name of the preference may vary, but it will start with browser.tabs.remote.autostart

문맥에 따라 이 답변을 읽어주세요 👍 7

모든 댓글 (1)

Happy112
Happy112
more options

선택된 해결법

Hi   ! Are you by any chance running Bitdefender Anti-virus  ? If so, you may want to disable it   -   see this bug that was just reported :
https://bugzilla.mozilla.org/show_bug.cgi?id=1363317
According to your system details you are using the Multiprocess feature, which might be causing this problem as well.

You could turn it off as follows : Type in the address bar about:config (promise to be careful, if asked) Type and search for the preferences : browser.tabs.remote.autostart and set it's value to false browser.tabs.remote.autostart.2 and set it's value to false Note: the exact name of the preference may vary, but it will start with browser.tabs.remote.autostart