Mozilla Add-ons
addons.mozilla.org
Extensions and themes for Firefox
DR 96 Free ?
Submit to Mozilla Add-ons →
Microsoft AppSource
appsource.microsoft.com
Business apps and solutions for Microsoft products
DR 96 Free ?
Submit to Microsoft AppSource →
Side-by-Side Comparison
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Which to Submit to First?
Both are strong options. Mozilla Add-ons edges ahead by total authority.
Submit to Mozilla Add-ons →About These Directories
Mozilla Add-ons
Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.