Sluggish Flash/HTML5 in Firefox 30.0

0

There are websites that have video playing back in the backround 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.

Here's video: https://www.youtube.com/watch?v=kh3MVX-kdo4&feature=youtu.be

Why in Chrome, IE 11 and Opera it plays fine?

UPDATE: Okay this is weird. 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?

Boris_yo

Posted 2014-07-19T08:27:38.080

Reputation: 5 238

Do you have plugins or addin's installed in firefox? If so, disable all and try again. How much RAM and which windows? – Tyson – 2014-07-19T12:24:34.930

Do you have flash player version 14.0.0.145? If not upgrade. – cybernard – 2014-07-19T15:54:09.093

Hey guys. Check for new information added. – Boris_yo – 2014-07-19T17:02:37.530

No answers