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.

Avatar for Username

Etsi tuesta

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.

Lue lisää

Ketju on arkistoitu. Esitä kysymys, jos tarvitset apua.

Can't reopen closed tabs since downloading 26.0?

  • 2 vastausta
  • 25 henkilöllä on sama ongelma
  • 10 näyttöä
  • Viimeisin kirjoittaja cor-el

starpanda
starpanda
more options

The option to 'undo close tab' has been greyed out since downloading the new version of firefox. The options to 'restore previous session', 'restore closed tabs' and 'recently closed windows' are also greyed out under history.

I've tried resetting firefox and it worked at first and then suddenly stopped for some reason. I've tried restarting Firefox in safe mode but this didn't work.

I've also tried clearing cookies and history completely, restarting my computer and removing all add-ons but nothing seems to work.

The option to 'undo close tab' has been greyed out since downloading the new version of firefox. The options to 'restore previous session', 'restore closed tabs' and 'recently closed windows' are also greyed out under history. I've tried resetting firefox and it worked at first and then suddenly stopped for some reason. I've tried restarting Firefox in safe mode but this didn't work. I've also tried clearing cookies and history completely, restarting my computer and removing all add-ons but nothing seems to work.

Kaikki vastaukset (2)

Diego Victor
Diego Victor
more options

Hello,

See this hrlp article:

Or you can use this addon:

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can reset browser.sessionstore.* prefs that are user set (bold) to the default value via the right-click context menu on the about:config page to make sure that Session Restore is enabled and working properly.

You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.

Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox profile folder.

Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).