Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Шукати в статтях підтримки

Остерігайтеся нападів зловмисників. Mozilla ніколи не просить вас зателефонувати, надіслати номер телефону у повідомленні або поділитися з кимось особистими даними. Будь ласка, повідомте про підозрілі дії за допомогою меню “Повідомити про зловживання”

Learn More

Ця тема перенесена в архів. Якщо вам потрібна допомога, запитайте.

Why I Have Sluggish Flash/HTML5 Animation in Firefox?

  • 2 відповіді
  • 1 має цю проблему
  • 18 переглядів
  • Остання відповідь від cor-el

Boris_yo
Boris_yo
more options

There are websites that have video playing back in the background and removethebackground.com is one of those sites. This kind of effect slows browser's response almost to a crawl unless I switch to another tab.

I have restarted Firefox in safe-mode with all addons disabled and video was playing smooth. This indicated to me that there was problem with addons and extensions and I disabled them all manually one-by-one after restarting in normal mode. But video was sluggish again despite all addons and extensions I disabled.

This is not clear to me. Are there other things that Firefox not shows me which can be disabled?

There are websites that have video playing back in the background and removethebackground.com is one of those sites. This kind of effect slows browser's response almost to a crawl unless I switch to another tab. I have restarted Firefox in safe-mode with all addons disabled and video was playing smooth. This indicated to me that there was problem with addons and extensions and I disabled them all manually one-by-one after restarting in normal mode. But video was sluggish again despite all addons and extensions I disabled. This is not clear to me. Are there other things that Firefox not shows me which can be disabled?

Усі відповіді (2)

Nostromov
Nostromov
more options

Just btw., werx fine with:

Z68A-G43 (G3) - i7-3770 - Vengeance 2x4GB 2133MHz - GTX 650 Gainward - WD 1TB 64MB SATA - Win7 Pro/64 SP1 / Trusty Xfce AMD64

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need close and restart Firefox after toggling this setting.

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (localstore-safe.rdf file)
  • JavaScript JIT compilers are disabled (about:config page: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected