Visit the webpage in your browser, right-click the download link with your mouse, select Save Link As… and save the XPI file to a location on your computer that is easy to remember. Searching for it, as shown above, doesn't locate the add-on. You may have been given an URL for the add-on, or the add-on you want isn't on the 'official' page. Once you locate an add-on you like, click on Install, wait for it to be downloaded, then click on Restart now if prompted.Ī slightly less ideal case (Install from a downloaded XPI file) Here is a search for add-ons that mention 'Contacts': You can keep refining your search until you find what you want. Once you have done your first search, a new Search category appears in the panel on the left. Enter the add-on's name or enough of it to limit the search results returned to a manageable number and press Enter Return or click the magnifying glass icon. In an ideal world, all the add-ons you would want are officially vetted, approved, and can be found on the official website, .įor add-ons that fall into this category, you can simply go to the Add-ons Manager tab in Thunderbird by clicking the menu button followed by Add-ons and click on the Extensions panel on the left to display the search box in the top-right corner. 2 A slightly less ideal case (Install from a downloaded XPI file).

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