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

Firefox History Menu

more options

Why are "Recently Closed Tabs" and "Recently Closed Windows" grayed out in my Firefox History Menu? I see a list of the recently viewed web pages but I can't use the "Recently Used Tabs" to go back to one of those pages.

Why are "Recently Closed Tabs" and "Recently Closed Windows" grayed out in my Firefox History Menu? I see a list of the recently viewed web pages but I can't use the "Recently Used Tabs" to go back to one of those pages.
Attached screenshots

Chosen solution

Enter about:config in the URL bar and check the preferences browser.sessionstore.max_tabs_undo and browser.sessionstore.max_windows_undo.

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

Enter about:config in the URL bar and check the preferences browser.sessionstore.max_tabs_undo and browser.sessionstore.max_windows_undo.

more options

TyDraniu Thanks for solving my problem.