This last Firefox update was totally useless, all Firefox updates destroy my previous tabs and are therefore extremely disruptive.

Question

This last Firefox update was totally useless, all Firefox updates destroy my previous tabs without warning and are therefore extremely disruptive. I lose information that will take time to recover. Firefox should give warning to its users so that vital information can be saved before updating their tab system.+

Answer 1

Firefox should not lose your open tabs when it updates. <br /> (That is not to say it always succeeds)
I know Firefox will sometimes remove stored open tabs with updates, and I think Firefox 29 itself had a particular issue with the open tabs.
* Bug 1001167 - Session Restore doesn't handle a corrupted sessionstore.js file properly ('''That is fixed in the current Release Firefox 30''')
Firefox 29 and later should respect the setting to not update without warning you. So you should be able to set it to
* Bug 950357 - The About dialog automatically checks for updates (and then asks the user if he wants to update) even when the "Never check for updates" option is selected. ('''Again that is fixed in Firefox 30''')
* SEE [[Advanced settings for accessibility, browsing, system defaults, network, updates, and encryption#w_update-tab]]'''_update-tab'''
NOTE it has the option to let you choose when to upgrade.
I agree Firefox should warn before update, and it should give users an indication of what is about to change. Use input to make a comment.
* https://input.mozilla.org/en-US/feedback
We are only volunteers and fellow Firefox users, not the people making choices and decisions.
Consider using Firefox Sync to backup your open tabs
* [[How do I set up Firefox Sync?]]
* [[How to update to the new Firefox Sync]]
Although Firefox will do nothing to warn you what features change, note that the Beta release is six weeks earlier and will give you a very good indication of what will be in the Release.
Release notes
*Fx '''29 Beta''' http://www.mozilla.org/en-US/firefox/29.0beta/releasenotes/
*Fx 29 http://www.mozilla.org/en-US/firefox/29.0/releasenotes/
*Fx 29.0.1 http://www.mozilla.org/en-US/firefox/29.0.1/releasenotes/
*Fx '''30 Beta''' http://www.mozilla.org/en-US/firefox/30.0beta/releasenotes/
* Fx 30 http://www.mozilla.org/en-US/firefox/29.0/releasenotes/
* Fx 31 Beta http://www.mozilla.org/en-US/firefox/31.0beta/releasenotes/
Note the pattern in the links /nn.0/releasenotes and /nn.0'''beta'''/