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Firefox users who open the official Firefox Add-ons repository may notice a new warning message displayed on most extension pages.

The warning reads: "This extension isn't monitored by Mozilla. Make sure you trust the extension before you install it". A read more link points to a support page that explains the concept behind the Recommended Extensions program.

The warnings were not displayed before on Mozilla AMO, the name of the add-ons repository, and you may wonder why the warnings are displayed right now.

Mozilla announced the launch of the Recommended Extensions Program for Firefox in early 2019. The main idea behind the program was to create a list of featured extensions that Mozilla would promote in various ways including in Firefox itself but also on Mozilla AMO.

Extensions and their developers had to meet a number of criteria including that extensions needed to be safe and relevant, that the developer was committed to the extension, and that they needed to be "really good" at what they offered.

Quote:Due to the curated nature of Recommended extensions, each extension undergoes a thorough technical security review to ensure it adheres to Mozilla’s add-on policies.

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