How to Install Thunderbird Themes

Step-by-Step Guide

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   Step 1: Open Thunderbird's website with the themes: https://addons.mozilla.org/en-us/thunderbird/complete-themes/?sort=popular;

   In this tutorial, we will be choosing "Walnut for Thunderbird".
   
   Click on the theme. , It will open the "Download" folder on your computer. , Click on the "OK" button. ,,, Click on the 'Install from file' option.
   
   It will take you to your computer. ,,,,, Your new "Walnut" theme is now installed.
   
   It will look like the above image.
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   Step 2: Select a theme you like.

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   Step 3: Click on "Download Now" button.

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   Step 4: Keep a default option "Safe File".

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   Step 5: Open Thunderbird.

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   Step 6: Click on Tools (on toolbar)

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   Step 7: then Click on 'Add-ons' option It will open 'Add-on Manager' window

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   Step 8: Click on a little arrow on toolbar (on the right).

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   Step 9: Find the "Walnut" theme you saved earlier.

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    Step 10: Click on the "Open" button.

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    Step 11: Click the "Install Now" button on the next screen.

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    Step 12: On prompt "Walnut for Thunderbird will be enabled after your restart Thunderbird"/ click on "Restart Now".

Detailed Guide

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