In a profile with lots of form history saved, open prefs, and clear it. Notice the button is greyed. Quit Phoenix. Notice formhistory.dat grows by about 16K. Restart Phoenix. Notice old form data not available in forms. Notice 'clear' button still greyed. It looks to me like Phoenix appended <datareference>=null on to the end of the mdb file, instead of removing the old data. This is a MAJOR privacy issue. Users will think their personal data has been purged, as all UI indicates it has, while their data is actually still perfectly readable in the mdb file. Also probably a perf issue. I don't know if formhistory.dat will continue to be appended to, or old entries will start to be overwritten.

Taking QA. Sorry for the bugspam

This doesn't seem to exist any more. formhistory.dat looks empty to me following a clear all.

Just tried this again, with Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040727 Firefox/0.9.1+ Pretty much the same as first described. formhistory.dat grew from 52k to 59k.

could bug 254485 be related here?

(In reply to comment #4) > could bug 254485 be related here? or bug 253935...

(sairuh borrowing marcia's account) could this be blocking bug 254485? nominating in case it does.

bryner is looking

the patch in bug 254485 might fix this one.

looks fixed using 2004102109-0.9+ bits on linux fc2: formhistory.dat went from 27334 bytes to 245 bytes after I hit "clear," and remained as such after I had quite firefox. marking verified.