Follow all the steps just to be sure. #Uninstall jZip (or Windows jZip or Windows jZip Toolbar) from Control Panel > Add or Remove Programs. #Open Windows Explorer #*Navigate to the C:\Program Files\jZip Toolbar folder #*Double-click uninstall #*Delete the Windows jZip Toolbar folder. #In Firefox, remove the Add-on if it is there #*Choose Add-ons > Extensions. #*Select the jZip Toolbar entry '''''if it's there''''' and click the Uninstall button. #*Close the Add-ons Manager tab/window #In Firefox, reset preferences #*Type '''about:config''' in the address bar and press Enter. #*If you see a warning, accept it (promise to be careful) #*Filter = jzip #*In results in the bottom panel, right-click each entry and choose Reset. #Restart Firefox. There should have been options during the jZip installation; see image below. An excellent free application to replace jZip (and the one that I have used for a very long time) that does not install all the "extras" is 7zip: *http://www.7-zip.org/ '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' ------------------------- Not related to your question, but... You need to update some plug-ins: *Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/ *Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox] *Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox] *Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

I had previously followed these steps, but I had overlooked uninstalling Windows Jzip toolbar