Fix the checker for Firefox version
Add basic info about OB version
Cosmetics on prefs page

Remove redundant jailHL word from spans
Cosmetics
Cosmetics v2

Beautify source with spaces before conditionals
Update for d38240689f1d09768b8de22a8d598f3b7db7134d

I've forgot to add obv class :x
Bump version to 2.0.7