Unable to install british_english_dictionary-1.19-fx+zm+tb.xpi into TBP 2.0 RC1
Error Message:- Incompatible Extension. British English Dictionary 1.19 could not be installed because it is not compatible with Thunderbird 2.0.0.0. (British English Dictionary 1.19 will only work with Thunderbird versions from 2.0a1 to 2.0b1)
The Australian Dictionary english_australian_dictionary-0.2-fx+zm+tb.xpi installs okay.
This just means they haven't updated it to work with RC1 yet. Not surprising as localization stuff is often out of sync until the final release.
Sometimes, the impossible can become possible, if you're awesome!
It's all the same with the German dictionary atm. Hope this can be updated soon.
I hacked the dictionary file myself. Here's how:
1. Open the XPI in a zip tools (7-Zip, winzip etc)
2. Open install.rdf in your favourite editor
3. Change the maxVersion attributes to 2.0.* (there's 3 - I just changed them all)
4. Update the XPI with the modified install.rdf
Note: if/when someone updates the XPI properly, the version number should be changed, and Automatic Updates will send you a new version (without the hacks).
Hope this helps.