Mozilla Thunderbird Skins Themes: How to Install Extensions with Strict Compatibility Checking Disabled

Are you tired of dealing with incompatible extensions in Mozilla Thunderbird? With the latest version, Thunderbird 60, comes a change that has affected the way extensions are loaded. In this article, we will guide you on how to disable strict compatibility checking and install extensions that are not marked as compatible with Thunderbird 60 explicitly.

Before we dive into the solution, let's understand what strict compatibility checking is all about. Strict compatibility checking ensures that only extensions that are specifically marked as compatible with Thunderbird 60 can be installed and enabled. This means that if an extension is not listed as compatible by its author, it will not be allowed to install.

To disable strict compatibility checking, follow these steps:

1. First, make sure you have flipped the preference to false in your Thunderbird settings. You can do this by going to Tools > Options from the menu bar and then navigating to the Advanced tab.

2. Once you are on the Advanced tab, scroll down to the section labeled 'Extensions' and click on the 'Edit' button next to the 'extensions.strictCompatibility' option.

3. In the preferences window that opens, change the value of the 'strictCompatibility' option from true to false. This will disable strict compatibility checking in Thunderbird.

Now that you have disabled strict compatibility checking, you can install extensions that are not marked as compatible with Thunderbird 60 explicitly. However, keep in mind that these extensions may not work properly or may cause issues with your email client.

To find out if an extension is compatible with Thunderbird 60, you can check the official Thunderbird add-ons website. The website lists minimum and maximum compatibility information for each extension, which will help you determine whether it is compatible with your version of Thunderbird.

In conclusion, disabling strict compatibility checking in Mozilla Thunderbird allows you to install extensions that are not marked as compatible with Thunderbird 60 explicitly. However, this may come with some risks, so make sure to carefully evaluate the compatibility of each extension before installing it.

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