See:

• http://kb.mozillazine.org/Preferences_not_saved

You can open the about:config page via the location bar and do a search for jZip via the Filter at the top of the about:config page.
You can reset all jZip related prefs via the right-click context menu to their default values.

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.

• Use the Filter bar at to top of the about:config page to locate a preference more easily.
• Preferences that have been modified show as bold(user set).
• Preferences can be reset to the default or changed via the right-click context menu.

Thanks cor-el. once i open the about:config page i don't seem to be able to go any further.

Cheers bryan_orca

Does any pref show if you type jzip in the Filter bar at the top of the about:config page?

Thanks, found it. But had trouble deleting it. Right click, modify/copy/copy name/copy value/new/reset. I tried reset and it does not show anymore and is not in the pref but still shows as my home page, still. Bugger!!!!! Pain in the ass.