Rated 4 out of 5 stars

Από τον/την Radical Mike στις Φεβ. 24, 2010 · μόνιμος σύνδεσμος

I don't know if this is better than zindus because zindus doesn't work with pre-release versions of Thunderbird, but this extension works great. (I haven't tested one reviewer's claim that offline changes are lost and not synced, but I'll surely keep that in mind.)