How to get listed on Opera Add-ons
opera.com
In short: Getting listed on Opera Add-ons is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Package your useful browser feature as an Opera extension and submit it for moderation.
How to submit
Get your material ready
Package your useful browser feature as an Opera extension and submit it for moderation.
Meet the site's conditions
Extension needs one clear purpose, complete metadata, policy compliance, and moderator approval.
Submit on opera.com
Open the submission page on opera.com and complete its form — that is the "Open submit page" link at the top of this page.
Rules and caveats
Extension needs one clear purpose, complete metadata, policy compliance, and moderator approval.
Why it scores 66
Priority sets the band — this one is medium. Cost (free) and effort (moderate) move it within that band, which puts it in the useful tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.