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Chrome Extensions vs Firefox Add-ons in 2026

With both Chrome and Firefox offering massive extension ecosystems, choosing the right browser for productivity tools matters. Here's the 2026 comparison.

Extension Ecosystem Size

Metric	Chrome Web Store	Firefox AMO
Total Extensions	180,000+	35,000+
Market Share	65%	6%
API Standard	Manifest V3	WebExtensions (MV2 + MV3)
Cross-browser	Via WebExtensions	Chrome-compatible

The Good News: Many Extensions Work on Both

Thanks to the WebExtensions standard, most Chrome extensions can be easily ported to Firefox. FlowKit offers all 66 extensions on both Chrome and Firefox, ensuring you get the same tools regardless of browser choice.

Also Available on Edge and Opera

Since Edge and Opera are Chromium-based, Chrome extensions work natively. FlowKit extensions are available across all four major browsers.

Browse All 66 Extensions →

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FlowKit — 66+ free browser extensions, 15 VS Code extensions, and 10 userscripts for developers.

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