I love this product. Earlier I was using onetab (https://www.one-tab.com/) to de-clutter my tabs and revisit later (this product doesn't sync across) devices. But in different occasions - Chrome Browser Crash, MackBook Crash I have lost 2K+ links. After that incident I came across raindrop, and that made my life easier. I have tried Brave Browser Sync Chain to sync tabs and data across devices. But I still went back to FireFox - I tried xBrowserSync(https://www.xbrowsersync.org/) to sync the data across browsers, but lost the key after one browser update and left it.