Firefox Extended Support Release
We do our best to support Firefox's latest Extended Support Release (ESR). Older versions of Firefox may disable some features on GitHub and require the latest version of Firefox.
Beta and developer builds
You may encounter unexpected bugs in beta and developer builds of our supported browsers. If you encounter a bug on GitHub in one of these unreleased builds, please verify that it also exists in the stable version of the same browser. If the bug only exists in the unstable version, consider reporting the bug to the browser developer.

Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.
