Hi Aiman,

It sounds as though you either had Firefox set to display the tabs and windows from the last session upon opening, or you had a session management extension installed in the previous version.

If you want the browser to open with the tabs you were viewing when you last closed it, use menu path Tools->Options->General->When Firefox starts->select "Show my windows and tabs from last time".

If you don't want that to happen every time you launch Firefox, you can install a session manager extension.

Method II-

Session restore works more reliable if you choose Tools > Options > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"

See also http://kb.mozillazine.org/Session_Restore

Method III-

You can try to de-install Firefox, delete all system folders, which will erase all stored settings, but you make sure that the installation of the new version is clean and from there you will have to set up again as you had to see if it works well.

Method IV-

Try to use "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit) to close Firefox if you are currently doing that by clicking the close X on the Firefox title bar.

Wait a bit longer (45 seconds) before shutting down the computer to give Firefox more time to close properly.

If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix:

bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx You can find the IDs of the submitted crash reports on the about:crashes page.

You can open the about:crashes page via the location bar, like you open a website, or open the crash reports page via "Help > Troubleshooting Information". See:

http://kb.mozillazine.org/Mozilla_Crash_Reporter https://support.mozilla.org/kb/Mozilla+Crash+Reporter

Method V-

Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:

Note: You might want to print these steps or view them in another browser.

Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer. After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu). Delete the Firefox installation folder, which is located in one of these locations, by default: Windows: C:\Program Files\Mozilla Firefox C:\Program Files (x86)\Mozilla Firefox Mac: Delete Firefox from the Applications folder. Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory. Now, go ahead and reinstall Firefox: Double-click the downloaded installation file and go through the steps of the installation wizard. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

Please report back to see if this helped you!

Greetings!

Thank you for your advice.

I am quite new to computer. Instead of Method V, can I use the WINDOWS Uninstall Program to remove Firefox. Also how can I backup my current bookmarks and add-ons so that I can add it back when I re-install Firefox .

Thank you

Sure, You can!

Drop me a reply, If you still have any problem.

Greetings!