I don't know anything at all about Flashgot or any other download managers or accelerators; I'm here strictly to do NoScript support. So I know even less than you about this topic, and freely admit it.
A Web search (which you too could do) turned up very little in the way of independent, unbiased benchmark tests. This answer came from
Yahoo Answers:
Look now buddy. They all download with the same speed. I know that some people are now flaming me while reading this but downloading speed depends on the site hosting or P2P upload rate,and also your internet host. download managers just use that net,they cant amplify it because you're allowed as much as the host gives you.
I use flashget because i like it. ive seen tons of videos that people accelerate download speed like x100 times,but do you think this little trick will cheat the whole world? If that's true will people pay for a better Inet connection while they can just put a free program and WHOALA 100 times faster.
Think about it.
Not phrased in the most civil manner, but ...
He seems to be saying pretty much what
therube said: It's limited by the server, your ISP, and probably by the speed of your CPU if you have an older system. And if someone invented a tool to accelerate speed 200x, I could get 56k dial-up for 1/4 the cost of the 10 Mbps cable that I'm paying for.
roddhall wrote:Of course one is faster than the other! Otherwise, why would any coder bother to create a new one?
Umm,
1) To make money, if it's payware.
2) Ego, to have their name and product splashed all over the Net.
3) In the worst case, to install malware along with the product.
4) They think that their GUI or bells and whistles are better than the other guy's. Some users will agree; others won't. Personal taste varies widely. So there may be room for a lot of accelerators, each suiting an individual preference -- as also said by
therube:
I'd use the one that suits your style.
Analogy: Which is the fastest browser? Depends on who's running the test and what they're testing, under what conditions. We all know that Firefox or Seamonkey + NoScript is the *safest* browser, but for the non-security-conscious, which is most users, there is choice among Chrome, Opera, and many others. And each has its adherents.
Cheers.
ETA: Also, you should update your Firefox 3.6.20 to the latest, 3.6.24, as there have been several critical security issues fixed since your version.