The upcoming Deer Park Alpha 1 release will only be compatible with Firefox extensions that have a maxVersion of "1.0+" or higher. That is, the value of the app.extensions.version preference has been bumped from "1.0" to "1.0+".
This was done so that extensions that have not been tested with the latest trunk builds will not cause problems for trunk testers. More importantly, it means that authors developing extensions for Firefox 1.1 against the current trunk will not have to worry about their extensions working in Firefox 1.0 until they are ready to support Firefox 1.0. They can simply set minVersion to 1.0+ to preclude users of Firefox 1.0 from inadvertantly loading their extension.
Before we launch Firefox 1.1, we will again bump the value of app.extensions.version from "1.0+" to "1.1".
Posted by darin at May 26, 2005 1:59 PM