I am having trouble getting onto the Internet. I am using Windows Vista and PC Dell Inspiron 530.
When I click on the Firefox icon nothing happens, to get on the Internet I have to go to All
Programs>Mozilla>Mozilla Set up and run that. It finishes with “Launch Firefox” > ? to which I reply Yes and off it goes. Has anyone any idea what might be the problem.
Try right-clicking the Firefox icon, then choose Firefox Safe Mode. You should get a Firefox Safe Mode dialog with a bunch of checkboxes. Don't tick any of them and click the Continue in Safe Mode button.
Does FF start and run correctly? If so, then there's a problem with one of your extensions or some other aspect of your config.
Now close FF again and re-open the Safe Mode dialog. Check the disable all add-ons checkbox which will permanently disable them. If Firefox now starts, you know it's an extension causing problems. Restart Firefox normally and re-enable the add-ons one by one. If you come across one that makes your browser unstable, either uninstall it or leave it disabled.
If you still have problems, go through each of the remaining checkboxes to reset the various other aspects of your Firefox config.
If you still have no luck, try deleting your profile or creating a new one.
Or you could try installing a portable version of Firefox somewhere other than your currently installed copy. It'll install and operate completely independently of your current, broken version.