Install this from the separate Installation page.
Changes from the previous version:
- support for gzip compression in Gecko 1.9 (Firefox 3)
- a blacklist can be used to exclude some filters from the upload
- comments indicating when a subscription expires or where it redirects to can be added to the uploaded filter list
- support for http/https in the user interface (untested)
- support for Firefox 3's password manager
- the username/password isn't included in the upload url anymore (as in ftp://user:pass@example.com/)
- dropped support for older host applications
- use ABP's feature to prevent websites from detecting the extension