mozilla.org
In short: Getting listed on Firefox Add-ons is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Build your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Build your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Must meet Mozilla Add-on Policies, minimize permissions and pass review; thin promotional wrappers are unsuitable.
Open the submission page on mozilla.org and complete its form — that is the "Open submit page" link at the top of this page.
Must meet Mozilla Add-on Policies, minimize permissions and pass review; thin promotional wrappers are unsuitable.
Priority sets the band — this one is high. Cost (free) and effort (moderate) move it within that band, which puts it in the high impact tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.