You can try updating your filters in Adblock Plus:
https://adblockplus.org/forum/viewtopic.php?p=51926#p51926
Or you could try disabling Adblock Plus altogether.
What Revit Wants
You can try updating your filters in Adblock Plus:
https://adblockplus.org/forum/viewtopic.php?p=51926#p51926
Or you could try disabling Adblock Plus altogether.
Also see:
Can't open Emails in Firefox 8, but can in IE – Gmail Help