videoembed=One of the most useful scripts ever

[phoood]

http://userscripts.org/scripts/show/7686

automatically embeds youtube vids into the page where a link appears. Kinda gets annoying if someone happens to have 10 different vids in their sig, but thank god the creator of this script made it so dupes don't appear.

Use it with the Greasemonkey extension at https://addons.mozilla.org/en-US/firefox/addon/748

and look at userscripts.org for more great scripts.

example:

 

[sixb0nes]

Take your viral marketing elsewhere, thank you.

 

[FAST6191]

At this point in life does greasemonkey offer anything significantly more over a well executed adblock+, noscript and tweaked firefox?

 

[Gaisuto]

At this point in life does greasemonkey offer anything significantly more over a well executed adblock+, noscript and tweaked firefox?

This Megaupload Happy Hour script says hi.

 

[CockroachMan]

A Greasemonkey script executes a javascript in some specified websites.. if you know JavaScript, you can easily write your own scripts and make a lot of stuff with it..
I made some scripts to change some things that I found annoying on some sites that I visit (not GBATemp though)..

 

[xJonny]

I've been using it for ages and I use it side by side with Stylish, which does the same thing but using CSS mainly for website layout and look changes.

It is very very very useful.

Opera has partial compatibility with userscripts too.