Computer slow, 270 files in internet cache, will deleting them help, will it create problems?

"A collection of web page copies stored on your computer's hard disk or in its random-access memory (RAM). Firefox accumulates these copies as you browse the Web. When you click a link or type a URL to fetch a particular web page for which the cache already contains a copy, Firefox compares the cached copy to the original. If there have been no changes, Firefox uses the cached copy rather than re-fetching the original, saving processing and download time." It is save to remove. Try clearing your cache: 1. On the menu bar, click '''Tools|Options''' 2. Click the '''Advanced Panel''' 3. On the '''Network Tab''' , click '''Clear now'''