Can I pull that off in FF?
Interesting. Other comments in this thread indicate that the only extension that can do this has its ID hard-coded in the url parsing code to be whitelisted.
1 - Selecting multiple tabs and saving to bookmarks: you can't add to an existing folder without creating a subfolder.
2 - Add keywords to bookmarks: no way to filter bookmarks that have keywords. Also, when typing on the address bar, the keyword doesn't get highlighted or anything
3 - can't add a custom search engine. You have to add its extension, if available. Or add as a bookmark with a keyword, but then you won't be able to see a list of all search engines...
As a full time, happy Firefox user, this annoys me to no end, increasingly so as there are more and more competing search engines that I want to try.
I’m pretty sure that you used to be able to add arbitrary search engines too (by specifying the search URL with %q for the search query). It’s amazing to me that they would remove this.
Not only that, but on Chrome I have Amazon, Youtube, Reddit, all setup as search engines. For reddit, besides 'rdt' for general search, I also added keywords for searching inside /r/anime, /books, /ps4, and a few other subs I occasionally search.
I also think they used to have this, as Chrome still has. But no idea why they changed it.