After testing almost 20 different extensions, I finally found THE BEST one! Stop looking and just install it, and please read the instructions on the options page, you can even get all you already installed extensions just with a few clicks (no other extension can do this, due to WebExtensions limitations, but this guy found a way). This is the most configurable and easily the best context search add-on after the last Firefox update! I was using for a few years the Context Search X and felt sad it didn't work anymore on FF57 but this one right here is the best alternative for sure, trust me, I tried several others and all of them can't do what this special little marvel can!

Absolutely amazing addon.

This extension is the reason why i'm not leaving firefox after the big update. BIG LOVE author!

This is the perfect substitute for the Selected Search add-on, which won't be ported to Firefox 57+. Great job Daniel Lobo!

A big thanks for this addon !
I customized a little bit (by the fact that is highly customizable) to my taste, therefore I've already had an English-->Hungarian and also a Hungarian-->Englis dictionary on the popup menu and context menu with an external searching engine and icon. :-)

It is one of the most useful and great web extension till I tried to use in the "Quantum-era" (on Linux Mint Debian Edition with Xfce deskt. envir.).
Thank you again and again. ;-)

This great job (end the effort of the author behind that addon) deserves this 5 stars I gave.
;-)

I shall recommend this web extension to all of my friends.

great job

Works fine, thank you.

Amazing search add-on here.
SSS is GOD

genius indisponsable and replace some addon like fastestsearch

Very nice! That's exactly what I wanted, thank you!

Finally found replacement for Clickless Menu! Spent awhile Googling before stumbled across this. Exactly what I was looking for. Thank you!

Finally I find the extension I was dreaming to have. This extension is a must have for me and as firefox user I was using chrome ONLY because there was a similar extension that I could not find for firefox. You can easily customize the add-on and make your own search engines.
EX: add this in the addon settings: https://translate.google.com/?source=gtx_c#auto/en/{searchTerms} and now you can select any text and directly get a translation on google translate. I have added my favorite dictionaries like Larousse, Merriam-Webster etc.. and I have a translation with one click.
Million Thanks for the excellent job.

Grandiosa extensión!!!

Just what I was searching for ;)

I went back to FF52 ESR, because in quantum doesnt work my favorite auto search addon, but I found a great replacment.

Thank you very much mr. dev.

Very useful, highly configurable and options all are useful.

the best extension! As a search engine I added Google Translate link https://translate.google.com/?sl=da#auto/en/{searchTerms} , so i can translate now the selected text too!

The best!

I think I found a nice replacement for Context Search (the one by Ben Basson) and Drag & Drop Zones (which is broken).

It's a very good thing to be able to import engines from the search.json file.

Some of my engines were imported twice, because of the multiple links that exist in some files, but I must clarify that I created custom search engines with XML files, in an amateur way (imitating other search engines) and maybe I didn't do too well. Edit : it is now fixed.

The open as link button doesn't work but I expect it will be fixed soon enough. Edit : it actually worked for single-word and hyphened-word searches but not for a text with spaces or words separated by colons. The dev allowed the former with their last update but the later is forbidden by Mozilla.

Would it be possible to save the preferences ?

Thanks for your work, it is well thought out and deserves a better place on this website.