Text Link works, but can hang some websites. E.g., editing an issue on GitHub with a handful of links of various types resulted in the extension using 100% of my CPU per `about:performance`. The only solution was to disable the extension then kill the process manually.

Lots of false-positives is a main disadvantage.
Clicking on "ASP.NET" to select text is impossible.
I don't need to open asp.net URL, I just want to copy the text clicking twice and moving my mouse to select the whole sentence.

通常であればとても便利なのだけど、Twitterと極めて相性が悪い。この点が改善されたら高評価になるかな。

TwitterのサイトでHomeとEndキー操作が非常に重くなる。スクリプトの警告も出る。

Doubleklick Funktion is still not working in Firefox 57. If somebody made it working, please let me know what Settings i have to check7uncheck to open Textlink with Doubleklick like in Firefox 56

Please do not ONLY use WebExtensions, read this:
https://forum.palemoon.org/viewtopic.php?t=15928

and make Pale Moon work again.