Downstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=896071
The page title on the CC-BY-SA link in the Firefox OS app displays poorly, using the underscore form ('Wikipedia:Text_of_the_dang_license_blah_blah' or some such) which causes the page to scroll horizontally and look awful.
Should fix display to use the normalized space form, which should resolve this. Alternately switch to a CC-hosted page directly.
I'll try and poke at this in the next few days.
Version: unspecified
Severity: normal