From ReduxWiki

Contents 1 Firefox 2 Safari 3 Internet Explorer

[edit] Firefox

1. Tools menu => Clear Private Data... (Ctrl+Shift+Del)

[edit] Safari

1. Safari menu => Empty Cache... (Shift+Command+E) — The menu choice brings up the confirmation box; the keystroke combination clears the cache without confirmation.

[edit] Internet Explorer

1. Refer to the Tools menu, click Internet Options. The Internet Options box should open the General tab (default).
2. Within the General tab, Temporary Internet Files section, click Delete Files, in turn deleting current files stored in cache.