[Companion] firefox 1.0 changes to extensions

[Miles Libbey]

FYI:

http://weblogs.mozillazine.org/ben/archives/006075.html

To Extension Authors

In the next week or so I will increase app.extensions.version to 0.10.
This will end compatibility for all installed extensions with a
maxVersion set to 0.9! If existing versions of you extensions are still
compatible with the branch since 0.9, please contact update.mozilla.org
and get the maxVersion setting in the database increased to 0.10! Code
is landing in Firefox at the moment (see previous post) that mean that
you do not need to create a new XPI if all you're changing is the
maxVersion value in the install manifest! For Firefox 0.9/0.9.1/0.9.2
users this means that when they upgrade to 1.0PR the browser will
connect to update.mozilla.org and any custom RDF update files and
attempt to version-patch before falling back on looking for new XPIs.
1.0PR users will also be able to install incompatible extensions if a
remote version patch is specified that designates compatibility with
the new release.

Extension and Theme Authors should start preparing for these changes NOW