TheBrain - BrainBox v3.0.2
TheBrain (https://www.thebrain.com) is an information manager that lets you connect notes, web pages and files in a visual network map that works the way you think. Use BrainBox to send information to TheBrain directly from Firefox.
Go to a page in Firefox that you want to save and click on the BrainBox icon. You will be prompted to login if necessary. Learn more at https://www.thebrain.com/docs/brainbox-extension.