Old firefox sync

i you can find older versions of icecat(another unbranded firefox)

here:
http://ftp.gnu.org/gnu/gnuzilla/24/

i dont know if firefox 24 is too old though

It might not be a great idea to use the older versions from the security perspective.

https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/

(of course new versions also introduce new bugs so it's not black and white...)

I would second that it is a bit risky to go backwards for security reasons.

However there is a bug report on this:
https://github.com/owncloud/mozilla_sync/issues/33

Mozilla also has a bug ticket:
https://bugzilla.mozilla.org/show_bug.cgi?id=989756#c23

I meant more a way to use the old sync with newer versions of FF.