Web Developer Beta 0.9.9—a preview release of the next version of the Web Developer extension—is now publicly available. This release is for testing purposes only—for a fully supported version of the extension or localized builds please see the latest official release.
Note: If you are upgrading from a previous version it is strongly recommended that you uninstall the extension and restart the browser before installing the beta release.
As a beta release this build is not guaranteed to be stable and does contain some known issues in addition to those listed on the known issues page:
The idea behind this beta release is to give people the opportunity to provide feedback about this next version as well as report any bugs. Please report any feedback or bugs in the beta forum or via the contact form.