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.

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

Firefox windows freeze

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

more options

I got a weird problem with my Firefox. Since the 33.0 update, my Firefox usually get freeze, it means its windows is freeze and shows no difference on its windows but if I click on tabs (switch tabs) or close tabs, it shows the difference on taskbar only. However, while Firefox windows is freeze, Flash Player still work fine, i can still watch the video if I switch to tabs that have video playing. The only way to get it to normal is to end its task in Windows Task Manager and restart it. This usually happen when I watch a lot Youtube videos or sometimes spontaneously

I got a weird problem with my Firefox. Since the 33.0 update, my Firefox usually get freeze, it means its windows is freeze and shows no difference on its windows but if I click on tabs (switch tabs) or close tabs, it shows the difference on taskbar only. However, while Firefox windows is freeze, Flash Player still work fine, i can still watch the video if I switch to tabs that have video playing. The only way to get it to normal is to end its task in Windows Task Manager and restart it. This usually happen when I watch a lot Youtube videos or sometimes spontaneously

All Replies (1)

more options

Tyler Downer has replied to a thread you're watching. Here is their reply: Hey all, Just an update. A 0day exploit has been discovered in Flash, 16.0.0.257 and below. Adobe has released an update to 16.0.0.287 which fixes this issue. All users should update to the latest flash immediately. It isn't known how far back this hold exists, but at this time assume all versions are affected.
https://www.adobe.com/products/flashplayer/distribution3.html


If the above did not help you;

If you have problems with current Shockwave Flash plugin versions then check this:

  • see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

  • disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also: