Usefull add-ons for FIREFOX

1.QuickJava
Allows quick enable and disable of Java and Javascript from the status bar.

Kodi:

https://addons.mozilla.org/en-US/firefox/addon/1237

2. Adblock Plus
Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them.

Kodi:

https://addons.mozilla.org/en-US/firefox/addon/1865

3. DownThemAll!
The first and only download manager/accelerator built inside Firefox!

Kodi:

https://addons.mozilla.org/en-US/firefox/addon/201

3. FlashGot
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers. (Use together with DownThemAll)

Kodi:

https://addons.mozilla.org/en-US/firefox/addon/220

4. Greasemonkey
Allows you to customize the way a webpage displays using small bits of JavaScript.
Hundreds of scripts, for a wide variety of popular sites, are already available at http://userscripts.org.
You can write your own scripts, too. Check out http://wiki.greasespot.net/ to get started.

Kodi:

https://addons.mozilla.org/en-US/firefox/addon/748

Skripts for Greasemoney
Linkchecker

Kodi:

http://userscripts.org/scripts/show/9467

Right clicked Greasemonkey, selected manage user scripts, clicked on Rapidshare Links Checker, clicked Add next to included pages, and put in https://*
I logged into my premium account using list view and I get little green checkmarks next to the active files and links. If there is a blocked file you should get a little red X.
Make sure Rapidshare Links Checker has a checkmark next to it when you right click Greasemonkey.
Worked also for other filehosts

IF YOU HAVE MORE ADD YOUR ADD-ONS HERE.