Where are you located? What FF extensions are your running? Any real time AV or malware app running?
Any of these can affect page loads. FF cache could be a problem as well.
I'm not sure how the exact location would matter, just curious why this question popped up
Im located in Mandurah about 80kms south of Perth Western Australia, I have just one extension (H264 Codec) and one plug in (AdBlock) I have Ccleaner realtime app running and windows security essentails. How do I check the FF cache?
have u tried disabling CC Cleaner realtime monitoring & checked if you're still facing same issues ?
adblock shouldn't be an issue unless the site is using an anti-adblocker script - this should actually block the entire page though, with their msg (if the site has any)
Ever since I've installed pro version of Bitdefender for me some the pages stop loading, when I open them on a new tab/window in FF only, so when I refresh the page, it works like a charm - apparently BD scans all the links on the page, so something similar might be happening in ur system.
have u tried using another browser as well ? May be Chrome or Opera & check if you're facing the issues over there as well ? If you do, then most probably one of your security related softwares are blocking the page.
I have heard some of them having page loading issues who have slow connection (you can check your connection speed via -
http://www.speedtest.net/).
when I had slow connection, I used Opera - there's turbo function in there, it will disable all the videos, flash, gif images from loading - thus making the page load faster.
As far as the cache goes, you can try emptying your cache - as you have cccleaner, you can empty the FF cache through it as well. I usually empty my browsers cache once or twice a month.