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

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

This thread was archived. Please ask a new question if you need help.

Thunderbird input lags unless in safe mode

  • 4 replies
  • 3 have this problem
  • 6 views
  • Last reply by UserHelper

UserHelper
UserHelper
more options

Input to a message (reply or new) lags unless Thunderbird runs in safe mode.

I have used to option to disable all add-ons and reset the toolbars and the problem still occurs unless Thunderbird is running in safe mode.

Task Manager performance shows low CPU, memory, and disk usage when the problem occurs.

I'm using version 38.1.0 on Windows 7 - Home Premium with all updates installed.

The lagging does not occur in Internet Explorer or Microsoft Word or other programs.

Thanks for any help.

Input to a message (reply or new) lags unless Thunderbird runs in safe mode. I have used to option to disable all add-ons and reset the toolbars and the problem still occurs unless Thunderbird is running in safe mode. Task Manager performance shows low CPU, memory, and disk usage when the problem occurs. I'm using version 38.1.0 on Windows 7 - Home Premium with all updates installed. The lagging does not occur in Internet Explorer or Microsoft Word or other programs. Thanks for any help.

Chosen solution

Hi Wayne,

Turning off the hardware acceleration fixed the problem.

Thank you very much for providing this answer.

Read this answer in context 👍 0

All Replies (4)

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor
more options

Please tart *Windows'* safe mode with networking enabled - win7 http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode

Still In Windows safe mode, start thunderbird in safe mode - http://support.mozillamessaging.com/en-US/kb/safe-mode

Does problem go away?

UserHelper
UserHelper Question owner
more options

The problem always goes away when Thunderbird is started in Safe Mode with all add-on disabled.

The new Lightning add-on was declined in this installation. Would that make any difference?

Thank you.

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor
more options

Lightning is an unlikely candidate unless you've created calendars already. More likely try disable hardware acceleration at options | advanced | general and restart thunderbird.

good results?

UserHelper
UserHelper Question owner
more options

Chosen Solution

Hi Wayne,

Turning off the hardware acceleration fixed the problem.

Thank you very much for providing this answer.