To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Session Manager by mt3ch
Rated 5 out of 5 stars
Edit: I am enjoying continued use of this excellent add-on by using the Waterfox browser available from https://www.waterfoxproject.org/ in place of Firefox Quantum / v.57.
--
This extension contains almost my entire online life and it will not be the same without it. If it would keep it alive for Firefox 57 and would donate again and again. But I fear it is now too late for that. If necessary, I will switch to Waterfox as my main browser just to keep using this, and the Scrapbook extension (about which I could say the same thing). Whatever happens, I thank you very much, Michael, for every bit of love and work you have put into this. May it be returned to you in some way multiplied, both financial and otherwise.
To create your own collections, you must have a Mozilla Add-ons account.