After startup firefox will not open immediately sometimes must reboot laptop ??

after start-up I double click on the desktop icon or right click to open and FF will not open. I then must reboot the laptop and it usually opens. It seems to reopen ok later after closing the browser during the day. I had a box appear on opening for awhile that showed some upgrades for some apps (that I always declined) and then it went away after while. Sometimes when I go to open the box appears very briefly and as just a border of the box and then disappears. Could that be the reason for the hangup? Any input would be helpful. Should I maybe just reload the latest upgrade. thanks ahead of time helpful people. :o))

Try a clean reinstall.
* Download a fresh Firefox copy and save the file to the desktop.
* Firefox 7.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version or you lose your bookmarks and other data in the profile folder.
* Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
* It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup

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