Our latest version is 7, remove 3.5 and 6 fully first then download and install Firefox from scrtach

• getfirefox.com

As I said, "I uninstalled Firefox and reinstalled the latest version as it was shown by Mozilla. All looked well for no more than five minutes when the warning reappeared." I already worked through your answer and now I need to know why it is so persistent in giving me these warnings. The only Firefox I have on board is "7". I would dislike using IE as it minutes slower than Mozilla Firefox.

Export your existing bookmarks to a html file. Note down the existing add-ons you have installed. (Ctrl+Prtscrn of add-ons page and paste it to a word file)

Do a clean uninstall of the existing FF with free programs like Revo uninstaller, which will delete all the root directories and registries.

Now do a clean install of FF 7.0.1. Check the max.network.connections is set to 32 in the new FF.

Import your favorites from the html file you created. Then open all the bookmarks and see if they are working properly.

You can install the add-ons later on by looking at your saved word file.

Hope this works for you.

Maybe you installed beta or non commercial version previously, try to download fresh one and follow ameekw instruction, i personally use gmail with fx 7 with no problem