Back up the registry before making any changes.
"Backup Just the Part You Need. You can backup just a portion of the Registry by using the Registry Editor. To start the Registry Editor, click Start -> Run and type "regedit" without the quotes. Click OK, and the Registry Editor will start. In the left-hand pane, navigate to the branch of the Registry that you want to back up. Right-click the branch, and choose Export. Enter a name and location that you will remember, and then click Save. To restore that branch of the Registry, all you need to do is double-click on the file that you just saved, and the information will automatically be put back in the original location. When you back up in this way, the Export Range is set to "Selected Branch" by default, but if you change it to "All" the entire Registry will be backed up. This is not as useful for restoring, however, as it would overwrite more than you probably want if you double-click it to restore in the future."
I don't run Netscape but here's where they were a few versions ago.
HKEY_CURRENT_USER/Software/Netscape/Navigator/Url History
Right click on each url and choose modify and delete the value. |
