inspired by coll: ReferenceDesk, semantics, NLP, knowledge, notetaking and search: https://addons.mozilla.org/en-US/firefox/search?q=semantic&cat=all -38 =knowledge -56 =note+OR+notetaking -13
Use this extension to save things you see on the web into your Evernote account. It provides a toolbar button and context menu to add an article, selection, URL or an entire page.
16,949 weekly downloads
DuckDuckGo is a search engine that does not track you. Adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on.
Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.
Wappalyzer is a browser extension that identifies software on websites.
Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.
View publicly-accessible PDF, DOCX, PPTX, XLSX, among other files online with Google Docs by only 2 clicks. Click as usual for your default viewer. Support bookmarked URLs. Security and your explicit viewing intention are always honored.
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
Downloads all the images hosted on many of the popular free image hosts.
Pearltrees is a place for your interests. It lets you organize, explore and share everything you like.
Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web ...
Helps you to save web pages and organize the collection. If you are using Firefox 18 or newer, use the beta, which is available on the development channel.
Looking for a free PDF editor?
PDFescape enables you to open and edit PDF files & forms online, free! This Firefox extension allows you to automatically open PDF files you discover online in PDFescape.