I think that this extension has potential and it works as advertised. However, dragging the icons on the dropzones does not work. The only way to add icons is double clicking the lists on the left. After that there is no way to reorganize them.

Great that this addon is revived, but adding custom search engines is essential. I hope this will be implemented.

This is a good start. But it would be great to have some more granular settings. The ability to open a drag search in a new background tab is pretty essential for me, and it's frustrating that this isn't there. Really hope the developer keeps at it, as I've recently returned to Firefox and a usable drag and search extension for me is essential.

It's a pleasure to see this extension continued (with multi-process and webextension).

So far only 3 stars because many features from the original add-on are missing.
I find the addition of new search engine much less practical than before,
and l miss the icons (only "custom search 1 & 2") but maybe only because I didn't get
how to change this (but if this is the case, it also means it is not so user friendly).

一度表示された検索ボックスが消えず、出っ放しになる。
デザインも淡泊だがまあ使えなくもないレベル。

検索サイトの追加は従来のものと違い、ドラッグアンドドロップではなくダブルクリックで行うようだ。

下部のボックスから"Save"を押しても何も追加されなかった。
Nothing was added by pressing "Save" from the bottom box.

現時点でのバージョン0.1.2はデフォルト状態では日本語サイトに対応していませんが、Custom Search URLから検索に使うurlを変更すればなんとか使えます。
GoogleやAmazonなら.comから.co.jpに、Wikipediaならja.wikipedia.orgにするなど。

旧Drag & DropZonesが最近のFirefoxでは不具合が多発して使い物にならなくなっていますが、今後はこちらが開発のメインになるのでしょうか。今後のアップデートに期待します。

The idea is great but it would be much better if the addon loads the search engines directly from the "One-click search engines" in Options > Search. The Super Drag addon does this. Good luck.

There is no toolbar button.