The best work around I found was to put this:
Code:
user_pref("font.default.x-unicode", "sans-serif");
user_pref("font.default.x-user-def", "sans-serif");
user_pref("font.default.x-western", "sans-serif");
user_pref("font.language.group", "x-western");
user_pref("font.minimum-size.x-unicode", 10);
user_pref("font.minimum-size.x-user-def", 10);
user_pref("font.minimum-size.x-western", 10); in ~/zimbra/zdesktop/profile/prefs.
js.
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