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.

ابحث في الدعم

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

flickering in thunderbird 31.0

  • 2 (ردّان اثنان)
  • 12 have this problem
  • 1 view
  • آخر ردّ كتبه kikstart

more options

hi there, since upgrading to 31.0 thunderbird keeps flickering, i'm running windows 7. Can someone advise what may be the cause as previous versions were completely fine.


Timestamp: 23/08/2014 12:13:19 Warning: mutating the Prototype of an object will cause your code to run very slowly; instead create the object with the correct initial Prototype value using Object.create Source File: resource://gre/components/steelApplication.js Line: 783


Timestamp: 23/08/2014 12:13:26 Warning: Unknown property '-moz-border-radius'. Declaration dropped. Source File: https://www.mozilla.org/en-GB/thunderbird/release/start/?uri=/thunderbird/start/&locale=en-GB&version=31.0&os=WINNT&buildid=20140717165725 Line: 136, Column: 25 Source Code:

      -moz-border-radius: 5px;



Timestamp: 23/08/2014 12:13:26 Warning: Unknown property '-moz-border-radius'. Declaration dropped. Source File: https://www.mozilla.org/en-GB/thunderbird/release/start/?uri=/thunderbird/start/&locale=en-GB&version=31.0&os=WINNT&buildid=20140717165725 Line: 169, Column: 25 Source Code:

      -moz-border-radius: 5px 5px 0 0;
hi there, since upgrading to 31.0 thunderbird keeps flickering, i'm running windows 7. Can someone advise what may be the cause as previous versions were completely fine. Timestamp: 23/08/2014 12:13:19 Warning: mutating the [[Prototype]] of an object will cause your code to run very slowly; instead create the object with the correct initial [[Prototype]] value using Object.create Source File: resource://gre/components/steelApplication.js Line: 783 Timestamp: 23/08/2014 12:13:26 Warning: Unknown property '-moz-border-radius'. Declaration dropped. Source File: https://www.mozilla.org/en-GB/thunderbird/release/start/?uri=/thunderbird/start/&locale=en-GB&version=31.0&os=WINNT&buildid=20140717165725 Line: 136, Column: 25 Source Code: -moz-border-radius: 5px; Timestamp: 23/08/2014 12:13:26 Warning: Unknown property '-moz-border-radius'. Declaration dropped. Source File: https://www.mozilla.org/en-GB/thunderbird/release/start/?uri=/thunderbird/start/&locale=en-GB&version=31.0&os=WINNT&buildid=20140717165725 Line: 169, Column: 25 Source Code: -moz-border-radius: 5px 5px 0 0;

الحل المُختار

most likely your video adapter or driver does not support Thunderbird's hardware acceleration. It was turned off by default in about Version8, but check to be sure. use the config editor to check these preferences

layers.acceleration.disabled= true gfx.direct2d.disabled= true.

Read this answer in context 👍 10

All Replies (2)

more options

الحل المُختار

most likely your video adapter or driver does not support Thunderbird's hardware acceleration. It was turned off by default in about Version8, but check to be sure. use the config editor to check these preferences

layers.acceleration.disabled= true gfx.direct2d.disabled= true.

more options

thank you so much that has fixed my issue :)