Rated 5 out of 5 stars

by Robert Kofler on Sept. 28, 2011 · permalink

great tool - gives structure to endless replied & replied emails ;-)

but how to install on thunderbird 6/7/8/.. and higher?
well, use vim, which is able to edit ziped xpi files.
vim quote_colors-0.3-tb+sm.xp
inavigate to: install.rdf
and change <em:maxVersion>7.*</em:maxVersion>
save & install it!