How to speedup slow Mozilla Thunderbird email client on Windows 7?

 The following steps will help you to speedup Thunderbird so that it got usable again.

Set some interface options

Edit Thunderbird options under Preferences → Advanced → General tab, click on "Advanced options" button and set these values:

layers.acceleration.disabled = true

and

gfx.direct2d.disabled = false

and restart Thunderbird. If it is still slow, try the next options:

Disable AeroGlass

Disabling the AeroGlass interface makes the interface reacting much faster. Install the "NoGlass" Addon which is available in the Thunderbird addon repository.

Disable Folder Indexing

If you have folders with many emails inside, Indexing can slow down Thunderbird. Go To Preferences → Advanced → General tab and disable the Global search.

Antivirus scanning of the Email folders in the filesystem

A antivirus scanner can slow down Thunderbird as well. Configure your antivirus program to exclude the Thunderbird Mail folders from being scanned. Warning: this option should only be used when the email is scanned by a smtp proxy of the antivirus program for viruses before it is handed to Thunderbird.

Cleanup Thunderbird index files

Thunderbird creates a lot of index files. A cleanup of these files can speedup Thunderbird as well, especially if some of them are broken. There is a handy tool called Mozilla Thunderbird to do that.


Call  +1-856-514-8666 for help and support to fix more Thunderbird issues.

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