four issues (android version only) 1- firefox will kill itself when tablet is put to sleep - not shut off - for a few hours, when that happens 2- previous tabs are closed when firefox is restarted, so you press 'open all tabs...' which doesn't really open all the previous tabs, but 3- opens tabs from the same url with identical pages. eg, if you are on mozilla website, and have one tab on one page, another tab on a different page, when you reopen later using 'open all tabs...' you get two tabs for mozilla, but both on the same page. and lastly, 4- when you reopen using 'open all tabs...' you lose your 'back' history. when you select 'back', you go to mozilla's start up page. very frustrqting.

i must say, i really like firefox, use it through out our office and home computers, so i have a fair amout of experience using firevfox. i just find this one issue frustrating, and cannot see the logic i n disabling the cho8ce of reopening all tabs from last session, like your windows browser.