Review every permission
Remove permissions the extension does not need and explain the important ones in plain language. Align the marketplace disclosure, privacy policy and product website. Test behavior when a user declines an optional permission or disables access on a specific site.
Build the marketplace page first
The official listing should explain the browser problem, show the real interface and provide current support and privacy links. Test install, update and uninstall behavior before external promotion. A broken marketplace path wastes every visitor sent from another channel.
Show the before and after
Use screenshots or a short demonstration on a representative page. Make it clear when the extension activates, what it changes and how the user stays in control. Avoid abstract promotional art that hides the browser workflow.
Add external discovery carefully
After the marketplace page is stable, use launch platforms for awareness and relevant comparison directories for ongoing discovery. Technical or professional communities are appropriate only when the extension solves a problem that audience genuinely discusses.
Maintain trust after launch
Update screenshots and disclosures when permissions or data flows change. Monitor support messages and marketplace reviews for repeated onboarding failures. Record where each external listing is live so outdated descriptions can be corrected.
Platform rules and pricing change. Always check the current official guidance before submitting your product.