Mac running slow during internet applications?

Question

I have a MacBookPro, it's not too old, I got it at the end of August for the new school year. I don't have a lot of anything on it, just papers and a few photos. I'm also pretty careful about what files I open and I have really good anti-virus that was provided by the school. I don't download music or videos (except from iTunes). So, I'm fairly sure it's not a virus. All the programs on it were installed by my school's IT department and I can take it to them to take a look but if possible I'd rather see if I can't get it figured out on my own (since I'm pretty much attached at the hip to my laptop and can't bear the thought of leaving it with a stranger for a day or two). I haven't owned a Mac since I was about 5, so I'm still learning the programming and whatnot.

Anyway, I prefer Firefox over Safari although I do use Safari on occasion (one of my classes requires access to an online thing that doesn't support Firefox). But it seems to run rather slow, I'll get loading icons more often than I should. I know FaceBook chat is buggy to begin with, but if I'm chatting with more than one person or doing something else at the same time it'll take FOREVER to load. I'll be trying to type something to one friend and nothing will show because the other friend sent me a message and the computer is lagging like crazy. This is one of their top of the line models, there is MORE than enough power to handle a freaking chat program. Same thing happens when I'm in gmail chat too, so I know it's something to do with the internet. At first I thought it was my home connection since I have high speed but it's the slowest they have but it's the same at the school (which has MUCH faster speeds). 

Any suggestions on what the problem might be or how I can fix it? I do periodically clean out my history on Firefox and that hasn't made any difference. 

This is really bugging me, PCs I can fix but I'm still new to the whole Mac thing, I don't like not being able to fix my computer problems >.<

VnSin · Accepted Answer

It's a known glitch in any version of firefox 3.5.x.
Enter "about:config" in the address bar, scroll down and find the entry "javascript.options.jit.content" and change it from "true" to "false" by double clicking on it. Restart the browser, and the problem should be fixed.
Hope this helps.

SAM · Answer

Best Mac Solution

Anonym · Answer

Virtual memory is space on your hard drive that is dedicated to the storage of temporary internet files. This dedicated space can not be used for anything other than temporary files, so by increasing the amount of virtual memory space on your hard drive, you are reducing the amount of available storage space for permanent files and programs. It's minimal, the max is around 1GB, just thought I'd explain how it works. You can increase the amount of space used for virtual memory by clicking Tools in the upper right of your browser, select Internet Options, in the window that opens on the General tab in Browsing History select Settings. In the next window you can adjust the amount of space to be used for storage of your temporary internet files. These temporary files are copies of web pages you've been to that help load that web page faster if you decide to return to it, nothing important. The easiest thing to do when you get the little balloon that says low virtual memory is to click Tools, select Delete Browsing History and in the window that opens, on Temporary Internet Files, click Delete Files, then Yes. You won't lose anything important, only temporary files that your system will eventually delete on it's own in a few days.

? · Answer

May want to give OnyX a try. OnyX is a Mac cleaning app, I use it once a month to help run my mac at tiptop speed.

Mac running slow during internet applications?

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