Firefox
About Firefox
Firefox is the open-source web browser developed by the non-profit Mozilla. Unlike most mainstream browsers, it is not built on Chromium but on Mozilla's own Gecko engine, and its source code is released under the Mozilla Public License 2.0. On Windows it is a popular choice for people who want an alternative to Chrome and Edge.
Privacy is central to the product: Enhanced Tracking Protection is on by default and blocks many third-party trackers without any setup. Tab groups, Firefox View, Reader View and Picture-in-Picture help keep busy browsing sessions organized, while a Mozilla account syncs bookmarks, history, passwords and open tabs across devices. A large add-on catalogue lets users extend the browser as they like.
Key features
- Enhanced Tracking Protection enabled by default
- Sync bookmarks, history, passwords and tabs with a Mozilla account
- Tab groups and Firefox View for managing many tabs
- Reader View and Picture-in-Picture video
- Large library of extensions and themes
- Import bookmarks and passwords from other browsers
Download via Quark Drive
We’re still preparing the Quark Drive share for this app. It will appear here once it’s ready. Tap “Request” to bump it up.
How to install
“Windows protected your PC”
SmartScreen shows this for apps without a paid signature. Click “More info”, then “Run anyway”.
Antivirus blocks it
Open-source apps are often flagged because they aren’t commercially signed. Check the SHA256 first, then allow it in your antivirus.
Won’t start, or a DLL is missing
Usually a missing runtime. Install Microsoft’s Visual C++ Redistributable (x64) and the .NET Desktop Runtime, then try again.
Check the file
Run this in Command Prompt and compare the result with the SHA256 listed for the cloud file:
certutil -hashfile "%USERPROFILE%\Downloads\file-name" SHA256Alternatives
Google Chrome
Microsoft Edge
Brave
Changelog
FAQ
How do I download Firefox?
The Quark Drive share for Firefox is being prepared and will appear in the download section of this page.
Is Firefox free?
Firefox license: MPL-2.0 开源，免费. appwl only lists official builds and charges nothing for downloads.
Which systems does Firefox support?
This page offers Firefox for Windows.
Is Firefox from appwl safe?
appwl only lists official releases with their version and date. You can verify the SHA256 using the install tips on this page.