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Head-to-head · Web Browsers

Microsoft Edge vs Mozilla Firefox

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Microsoft Edge #2 in Web Browsers 9.2/10 Free plan Free plan✓ 2 of 3 features Visit Microsoft Edge
Mozilla Firefox #3 in Web Browsers 9.1/10 Free plan Free plan✓ 3 of 3 features Visit Firefox

Microsoft Edge leads on 0 checks, Mozilla Firefox on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft Edge · 9.2/10
  • Free planboth
  • Most featuresMozilla Firefox · 3 of 3

Microsoft Edge scores higher on our rubric for web browsers: 9.2 against 9.1 out of 10; our editors rank them #2 and #3.

On browser engine, Mozilla Firefox gives you Gecko where Microsoft Edge offers Chromium. On extension support, Microsoft Edge gives you Both where Mozilla Firefox offers Own_store.

Microsoft Edge is the better fit for microsoft users needing a full-featured browser. Mozilla Firefox is the better fit for open-source privacy-conscious everyday browsing.

  • Microsoft Edge fits best

    Microsoft users needing a full-featured browser

  • Mozilla Firefox fits best

    Open-source privacy-conscious everyday browsing

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Side by side

Feature Microsoft Edge 9.2/10 Visit ↗ Mozilla Firefox 9.1/10 Visit ↗
At a glance
Editor score 9.2 9.1
Ranking #2 in Web Browsers #3 in Web Browsers
Best for Microsoft users needing a full-featured browser Open-source privacy-conscious everyday browsing
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop, Mobile Desktop, Mobile
Platforms Windows, macOS, Linux, iOS, Android Windows, macOS, Linux, iOS, Android
Support Docs, Community Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Microsoft Edge 2/3 · Mozilla Firefox 3/3
Built-in ad blocking ✓ ✓
Cross-device sync ✓ ✓
Open source Not checked yet ✓ (best)
Specs
Supported platforms Both Both
Browser engine Chromium Gecko
Tracking protection Standard Standard
Extension support Both Own_store
Our review
Pros
  • Works across web, Windows, macOS, Linux, iOS, and Android
  • Supports Edge Add-ons and compatible Chrome Web Store extensions
  • Combines Copilot, SmartScreen, tracking prevention, and device sync
  • Enhanced Tracking Protection and Total Cookie Protection
  • Available on Windows, macOS, Linux, iOS and Android
  • Syncs bookmarks, passwords, history and open tabs across devices
Cons
  • Microsoft integrations may matter less outside the Microsoft ecosystem
  • Cross-device synchronization depends on signed-in devices
  • Copilot may not suit users seeking a browser without built-in AI
  • Sync requires a Mozilla account
  • Extensions and themes use Mozilla’s own add-on store
  • No paid tier for additional browser features
Our verdict

Microsoft Edge is a free web browser for consumers, organizations, and developers. It uses Chromium-based web rendering, supports compatible extensions from Microsoft Edge Add-ons and the Chrome Web Store, and runs across web, Windows,…

Read the review →

Mozilla Firefox is a free, open-source web browser for desktop and mobile users who want everyday browsing with built-in privacy controls. It runs on Windows, macOS, Linux, iOS and Android, using Mozilla’s Gecko rendering engine. Core…

Read the review →
  1. Microsoft EdgeWeb Browsers 9.2Free plan
  2. Mozilla FirefoxWeb Browsers 9.1Free plan

Strengths and trade-offs

  • Microsoft Edge — where it wins

    • Works across web, Windows, macOS, Linux, iOS, and Android
    • Supports Edge Add-ons and compatible Chrome Web Store extensions
    • Combines Copilot, SmartScreen, tracking prevention, and device sync

    Where it doesn't

    • Microsoft integrations may matter less outside the Microsoft ecosystem
    • Cross-device synchronization depends on signed-in devices
    • Copilot may not suit users seeking a browser without built-in AI

  • Mozilla Firefox — where it wins

    • Enhanced Tracking Protection and Total Cookie Protection
    • Available on Windows, macOS, Linux, iOS and Android
    • Syncs bookmarks, passwords, history and open tabs across devices

    Where it doesn't

    • Sync requires a Mozilla account
    • Extensions and themes use Mozilla’s own add-on store
    • No paid tier for additional browser features

More comparisons

All web browsers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update