Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

lost all tabs upgrading from ver 9 to 10

  • 2 àwọn èsì
  • 2 ní àwọn ìṣòro yìí
  • 9 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ po90260

more options

Upgrade from ver 9 to 10 lost all of my tabs! They are in sessionstore.bak but renaming it sessionstore.js doesn't restore them.

Upgrade from ver 9 to 10 lost all of my tabs! They are in sessionstore.bak but renaming it sessionstore.js doesn't restore them.

All Replies (2)

more options

Anything in restore Recently Closed Tabs/Windows?

more options

Recently Closed Tabs/Windows is grey.