Lightning Plugin for 64 Bit Fedora

If you need the latest lightning plugin for Mozilla Thunderbird on 64 Bit Linux, then you can take a look at the mozilla site:
http://releases.mozilla.org/pub/mozilla.org/calendar/lightning/releases/0.8/contrib/linux-x86_64/

Good Luck.

Thunderbird: Export Message Filters and Import across accounts

If there is a need to export and then import message filters in your thunderbird accounts:

Thunderbird Add-On:

https://addons.mozilla.org/en-US/thunderbird/addon/2474

Export Filters:
Tools->Message Filters. Then export the filters into any file.

Import Filters:
Tools -> Import Filters. Then choose the account you want the filters into. Choose the file where the exported filters exist and then apply the filters.