Yesterday I installed Firebird from source. I opened it using "MozillaFirebird" and it was great - very fast easy etc. Today I installed thunderbird from source. It too is quick and easy and works. However, now I type "MozillaFirebird" and it opens thunderbird. What's going on? Should I have installed thunderbird first? Surely the two aren't incompatible, otherwise what would be the point? I also tried /usr/src/firebird/dist/apps/MozillaFirebird and that ran thunderbird too!