downloadhelper.net icon Downloadhelper.net

DownloadHelper: the easy way to Web videos. Download tons of videos from most of YouTube like sites.

10,516

3,970

zotero.org icon Zotero.org

Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

16,762

699

adblockplus.org icon Adblockplus.org

Adblock Plus, the most popular ad blocker on Firefox, Chrome, Safari, Android and iOS. Block pop-ups and annoying ads on websites like Facebook and YouTube.

20,269

19,300

flashgot.net icon Flashgot.net

FlashGot gets your preferred download manager to work with Firefox! Download it now for free! - what is it?

204,068

36,200

323,586

22,700