Top 4 Firefox Add-ons Competitors & Alternatives in 2025
Updated onFind more companies like Firefox Add-ons. We've shortlisted leading alternatives and mapped their strengths, pricing, and go-to-market focus.
Firefox Add-ons
Best for consumersMozilla's official site for discovering and installing add-ons (extensions and themes) for the Firefox browser.
Competitors
- #2
Microsoft Edge Add-ons
Best for consumersMicrosoft's official catalogue for Microsoft Edge browser extensions, published via Partner Center and listed on the Edge Add-ons site.
#4Opera Add‑ons
Best for consumersOpera's official directory for extensions and themes built for the Opera browser.
- #5
Greasy Fork
Best for power usersGreasy Fork is an independent repository for user scripts (Greasemonkey/Tampermonkey) that let advanced users and developers customize website behavior and appearance.
#6Crx4Chrome
Best for consumersA third‑party repository and download site for Chrome extension CRX files that distributes extensions outside the official Chrome Web Store.
Daily Intelligence
Competitor Monitoring That Doesn't Suck
Spend under two minutes per week monitoring your competitors on every platform. Receive only the information that actually matters.
Join other SMBs on top of their competitors.