all tabs closes without firefox warning allthough i have the box checked. Why?
all tabs closes without firefox warning, allthough i have the box checked in the settings. Why? How can I solve this problem?
Opaite Mbohovái (1)
How do you close those tabs?
Firefox 4 and later versions save the previous session automatically, so there is no longer need for the dialog asking if you want to save the current session.
Use "File > Exit" or "Firefox > Exit" (Mac: "Firefox > Quit Firefox") if you want to restore multiple windows.
You can use "History > Restore Previous Session" to get the previous session at any time.
You may need to click the orange/gray Firefox button to see History.
There is also a "Restore Previous Session" button on the default about:home Home page.