1. PowerNotes Research
https://addons.mozilla.org/firefox/addon/powernotes-research/
2. Notes by Firefox
https://addons.mozilla.org/firefox/addon/notes-by-firefox/
3. Google Keep Notes
https://addons.mozilla.org/firefox/addon/google-keep-notes
4. Symbaloo Bookmarker
https://addons.mozilla.org/firefox/addon/symbaloo-bookmarker
5. Pocket Select All
https://addons.mozilla.org/firefox/addon/pocket-select-all
6. Dictionary Anywhere
https://addons.mozilla.org/firefox/addon/dictionary-anyvhere/
7. Google Scholar Button
https://addons.mozilla.org/firefox/addon/google-scholar-button/
8. Side View
https://addons.mozilla.org/firefox/addon/side-view/
9. Search Preview
https://addons.mozilla.org/firefox/addon/searchpreview/
10. Leech Block NG
https://addons.mozilla.org/firefox/addon/leechblock-ng/
