Closing this, because this bug report probably doesn't make much sense.
If I'm correct the thumb button on the G5 is used by default as the back
button for web browsing, not as the middle mouse button (which happens
to open links in new tabs in Epiphany). And the fact that it was
recognized as the middle mouse button in Breezy was probably and
accident, and not functionality to be expected.
However, I still think that there should be functionality in GNOME for
configuring extra mouse buttons, but that is GNOME-related. I will post
a feature request for that in GNOME's Bugzilla.
** Changed in: xserver-xorg-input-mouse (Ubuntu)
Status: Confirmed => Rejected
--
Thumb mouse button doesn't open links in new tabs anymore in Epiphany
https://launchpad.net/bugs/35039
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs