I use Debian Lenny. I had installed iceweasel & icedove packages with
corresponding localization packages for russian and belarussian
languages (iceweasel-l10n-ru, iceweasel-l10n-be, icedove-l10n-ru,
Both languages are visible in Add-ons windows of Iceweasel & Icedove.
But I don't know how to select language that I want to Iceweasel &
Icedove have. Help me, please.