I just recently upgraded my Firefox browser from version 1.5 to 3.0.4. on Mandriva 2007 Powerpack. I had several problems with the installation, but I need some advice with this one problem.
With the new 3.0.4 installation when I press the "Clear Cache" button within Preferences, a cache does clear somewhere but I get no change of state on the "Clear Cache" button and a blank applet screen appears. If I go into the files to the .../home/scott/.mozilla/firefox/85if17gs.default/Cache folder, I find 54MB of cached files stored. I tried deleting the files through Konqueror and I get a screen saying "I can not delete the files"
I have my cache limited to 50 MB in the Preferences section. Where is the new cache folder ? Should I delete the entire Cache folder ? Will Firefox create a new one ? The /.mozilla/... directory was created with the Firefox 1.5 installation, I never checked to see if the directory had been revised with the upgrade to 3.0.4. Any ideas ?

No problem deleting the Cache/ folder,
it will be recreated immediately.

In fact you can delete everything, if you wish !

( Backup bookmarks regularly )

....

Thanks knud f1,
I did delete the existing /cache/ folder, my 3.0.4 installation is using the /cache/ from the 1.5 installation. The folder rapidly repopulates with hundreds of files from various web sites. Just pressing the "Clear Cache" button in the Preference dropdown does not clear all the cached files as I was expecting. Many strange things have happened with this upgrade, maybe it was a damaged file that I got while downloading from the Firefox web site. I don't know if version 3.0.5 fixed some of the problems, I'm afraid to try another version based on the amount of time that I have spent on version 3.0.4.