Convert Chrome Extension to Firefox Tool Online
The modern online alternative to Chrome Store Foxified. Port any Chrome Extension (Manifest V3 / V2) into a fully compliant Firefox Add-on instantly without CLI tools, Python, or GitHub setups.
Drop your Extension (.ZIP) here
or choose an upload method below to start automated conversion
How to Convert and Install in 3 Easy Steps
Select Your Extension
Upload the .zip package or select the unpacked directory of any Chrome extension you created or downloaded.
Automatic Conversion
The tool assigns a valid Gecko ID, sets mandatory data policies, and re-maps service workers to Firefox scripts.
Load & Publish
A ready-to-use Firefox ZIP is generated instantly for local testing via about:debugging or upload to Mozilla AMO.
What Does This Chrome to Firefox Converter Fix?
Generates Mandatory Gecko ID
Injects browser_specific_settings.gecko.id to ensure Mozilla Add-ons (AMO) and Firefox can validate and sign your extension.
Data Collection Permissions Policy
Fixes the strict AMO lint error by adding data_collection_permissions: { "required": ["none"] } automatically.
Service Worker to Background Scripts
Re-routes Chrome's background.service_worker declarations to native Firefox background.scripts for execution.
Side Panel to Sidebar Action
Seamlessly maps Chrome's side_panel interface into Firefox's native sidebar_action and cleans incompatible permissions.
Looking for a Chrome Store Foxified Alternative?
Years ago, Chrome Store Foxified was the go-to add-on for installing Chrome extensions directly inside Firefox. However, with Google deprecating Manifest V2 in favor of Manifest V3 and Mozilla overhauling their extension security architecture, Foxified became completely non-functional.
This web application acts as the standalone, serverless replacement. It adapts your extension's architecture before deployment so that it runs natively inside modern versions of Firefox.
Running Converted Chrome Extensions on Firefox Android
Unlike Google Chrome on Android (which restricts extensions), Firefox for Android supports extensions! To run your converted extension on Android:
- Convert your Chrome extension package using this tool.
- Upload and sign the output package on the Mozilla Add-ons Developer Hub.
- Add the signed add-on to a Custom Add-on Collection in your Mozilla account, and link it inside Firefox Nightly or Beta on your Android device.
Frequently Asked Questions
Why use this online tool instead of GitHub repositories or CLI?
Many GitHub scripts require local environments with Node.js, Python, or web-ext installed. This tool gives you the exact same transformation directly in your web browser in seconds without writing a single terminal command.
Are my proprietary extension codes safe?
Yes, 100%. All unzipping, manifest parsing, code modifications, and re-zipping occur inside your browser using client-side JavaScript (Web Workers & JSZip). No files are uploaded to any server.
What if the Mozilla linter flags an innerHTML warning?
Warnings concerning innerHTML are advisory notices, not submission-blocking errors. You can proceed with the submission and explain in the Notes to Reviewer field that it is used safely for DOM node clearing.