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Lets compare the features of WXT vs Plasmo (another framework) and CRXJS (a bundler plugin).

Overview

FeaturesWXTPlasmoCRXJS
Supports all browsers✅ As of v2.0.0-beta.23
MV2 Support🟡 Either MV2 or MV3
MV3 Support🟡 Either MV2 or MV3
Create Extension ZIPs
Create Firefox Sources ZIP
First-class TypeScript support
Entrypoint discoveryFile basedFile based
Inline entrypoint configManifest based
Auto-imports
Supports all frontend frameworks🟡 Only React, Vue, and Svelte
Framework specific entrypoints (like Popup.tsx)🟡 .html .ts .tsx.html .ts .tsx .vue .svelte
Automated publishing
Remote Code Bundling (Google Analytics)
Dev Mode
.env Files
Opens browser and install extension
HMR for UIs🟡 React only
Reload HTML Files on Change🟡 Reloads entire extension
Reload Content Scripts on Change🟡 Reloads entire extension
Reload Background on Change🟡 Reloads entire extension🟡 Reloads entire extension🟡 Reloads entire extension
Respects Content Script run_at❌ ESM-style loaders run asynchronously
Built-in Utils
Storage
Messaging
Content Script UI