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Comparison

Add-ons for Firefox (en-US) vs Microsoft Edge Add-ons

Add-ons for Firefox (en-US) lands on Worth it, and Microsoft Edge Add-ons lands on Depends.

Add-ons for Firefox (en-US)

addons.mozilla.org

Worth it
Confidence: Medium

Use it if you browse with Firefox . it's Mozilla's official, free extension store with a huge catalog.

Read the full report

Add-ons for Firefox (en-US) versus Microsoft Edge Add-ons
CompareAdd-ons for Firefox (en-US)Microsoft Edge Add-ons
VerdictWorth itDepends
Best forFirefox users wanting ad blockingDaily Edge browser users
Who it's not forChrome, Edge, or Safari users . add-ons require FirefoxChrome or Firefox users . wrong store entirely
PrivacyNo known public vulnerabilities found in the sources reviewed.²No known public vulnerabilities found in the sources reviewed.12
Support qualityPer-developer; broken add-ons persist per reviewsNo support-quality evidence in sources
Public sentimentUsers love free, lightweight blockers like uBlock Origin but regularly hit extensions that break, conflict with sites, or stop being maintained.⁴Reddit users treat the store as fine but secondary, recommending ad-blockers and cross-checking the Chrome Web Store.
Biggest gotchaLock-in: extensions only work in Firefox; switching browsers means rebuilding your setup¹Historic complaint: slow review turnaround; expedited process only arrived February 2025⁹

Pick Add-ons for Firefox (en-US) when

  • Firefox users wanting ad blocking
  • Privacy-conscious browsers
  • Password manager and tracker-blocking needs
  • People who like customizing browser appearance

When Add-ons for Firefox (en-US) is not a fit

  • Chrome, Edge, or Safari users . add-ons require Firefox
  • Anyone expecting curated, enterprise-vetted software
  • Teams needing central licensing or procurement controls
  • Users unwilling to vet individual extensions themselves

Pick Microsoft Edge Add-ons when

  • Daily Edge browser users
  • Productivity extension hunters
  • Security-conscious users
  • IT-managed Edge deployments

When Microsoft Edge Add-ons is not a fit

  • Chrome or Firefox users . wrong store entirely
  • Niche-extension shoppers . Chrome Web Store is the bigger catalog
  • Developers wanting instant publishing . every update passes review
  • Anyone not running Edge; it has no standalone value

Sources

  1. Add-ons for Firefox homepageaddons.mozilla.org
    official
  2. About Firefox Add-onsaddons.mozilla.org
    official
  3. Extensions directoryaddons.mozilla.org
    official
  4. uBlock Origin reviewsaddons.mozilla.org
    review
  5. Block Site reviewsaddons.mozilla.org
    review
  6. AdBlock for Firefox reviewsaddons.mozilla.org
    review
  7. Add-on (Mozilla) - Wikipediaen.wikipedia.org
    news
  8. Curation and review process for extensions at Microsoft Edge Add-onslearn.microsoft.com
    official
  9. Empowering Microsoft Edge Add-ons developers with faster reviewsblogs.windows.com
    official
  10. Add, turn off, or remove extensions in Microsoft Edgesupport.microsoft.com
    official
  11. Manage Microsoft Edge extensions in the enterpriselearn.microsoft.com
    official
  12. Developer policies for the Microsoft Edge Add-ons websitelearn.microsoft.com
    security
  13. Microsoft Edge to block malicious sideloaded extensionsbleepingcomputer.com
    security
  14. Microsoft accelerates Edge Add-ons reviews with new expedited processneowin.net
    news
  15. 15 Best Microsoft Edge Extensions to Install in 2026blaze.today
    review
  16. 17 Best Microsoft Edge Extensions (Actually Useful)usevoicy.com
    review