The mozilla spellchecker works with 1.1.3, and is broken (the kplugin or K-Meleon.exe) with 1.5.b1.
Else, even it's not possible now to have correction directly with right click menu, it's possible to have it with a key.
It's possible to check/uncheck the spellchecker, and to change dynamically the language used.
Nice ...
A+
Mozilla/5.0 (x11; U; Linux x86_64; fr-FR; rv:38.0) Gecko/20100101 Ubuntu/12.04 K-Meleon/76.0
Web:
http://jujuland.pagesperso-orange.fr/
Mail : alain [dot] aupeix [at] wanadoo [dot] fr
Ubuntu 12.04 - Gramps 3.4.9 - Harbour 3.2.0 - Hwgui 2.20-3 - K-Meleon 76.0 rc