1. Updated yung browser
2. Kung konti ram ng PC mo, Close other apps (even in the notification bar) when trying to use mozilla.
3. Clear Cache, and Browsing history (although other sites are fast since nirereload nya lang din yung mga nakacache)
4. Depende rin sa bilis ng net (if firefox is retrieving data from the internet. magloload sya)
5. too many browser extensions may also affect the loading time ng browser.