I looked quickly and couldn't figure out a way to fix this decently; looks to me like the actual parsing in webkit is happening in a very different part of the code than the bits that handle whether to show as plain text or not, so fixing this (keeping in mind that plain-text stuff is a module), appears non-trivial.
I opened a bug upstream since we'll need help from the Evolution developers for this one; see https://bugzilla.gnome.org/show_bug.cgi?id=684245 ** Bug watch added: GNOME Bug Tracker #684245 https://bugzilla.gnome.org/show_bug.cgi?id=684245 ** Also affects: evolution via https://bugzilla.gnome.org/show_bug.cgi?id=684245 Importance: Unknown Status: Unknown ** Changed in: evolution (Ubuntu Quantal) Status: In Progress => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1037669 Title: gst-plugin-scanner and browser plugins are used when opening certain emails To manage notifications about this bug go to: https://bugs.launchpad.net/evolution/+bug/1037669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs