Go to an existing bug (url above as an example) type a bunch of stuff into the "additional comments" field. every time you hit space, the cursor gets off by more and more, further and further ahead of the actual text drawn. backspacing backspaces over nothing. no idea to see what is exactly in the text field.

very dogfood, makes bugzilla impossible to use.

cc'ing simon and joe per their request.

don't see this on my win32 build. probably maconly.

This also shows up in plain text composer. It does not affect single line edit fields, or <pre> sections in composer.

See bug 40647 that I submitted. Same thing, but your description is more concise.

add keyword nsbeta2; reassign to sfraser since he may have a fix for it soon.

*** This bug has been marked as a duplicate of 40647 ***

this is indeed a duplicate of bugs 40647 and 40648