1063127 - Form data from a private tab sometimes gets synced to Firefox on Android

Status: RESOLVED WORKSFORME

(Firefox :: Sync, defect)

Description

[Daniel Holbert [:dholbert]]

Reporting on behalf of someone in IRC #mv who was reluctant to make a bugzilla account. (I can't reproduce, but this person said they & their friend could both reproduce)
{
I discovered it when a friend used my laptop to log into his mail, from a private tab, and now my mobile device autocompletes his email address in any form, even though I'm positive he used a private tab to accessit on my laptop

and any form data entered into a private tab in windows FF is synched to the mobile device.  Not the url, not the page or history, but the actual form data submitted.

end result is that in any login form on the Android  FF browser, clicking in the empty form box shows a dropdown of all usernames used on the desktop device, including ones from private tabes
 not just for the same site originally accessed, but any site with a similarly named form field
 I've reproduced it, using other dummy usernames, 
 and both devices were/are mine

VERSION INFO:
i just updated today, so it happened with whatever version was just before this one,
w7 x86 laptop
android Jelly Bean, running the latest FF
}

Comment 1

[Daniel Holbert [:dholbert]]

(I tried to reproduce this myself, using Firefox Nightly, but was unable to do so.)

Comment 2

[Daniel Holbert [:dholbert]]

(For my unsuccessful trials, I used the "Your Name" field on https://pastebin.mozilla.org/ , and the login form at https://mail.mozilla.com/ .)

Comment 3

[Daniel Holbert [:dholbert]]

(I also confirmed that I *could* get sync to transfer form history from a *normal* (non-private) tab on Desktop to mobile, using "your name" on pastebin.mozilla.org.  I couldn't make this happen from a private tab, with frequent manual Tools|Sync Now attempts. (and "Sync Now" on Android as well))