Please make it habit to provide release notes (I never allow an update without notes).

Condensed, for 0.2.2:

https://pastebin.com/qJHbXfJi

– and for 0.2.3:

https://pastebin.com/tveYgV7n

– what changes are in 0.2.4? Notes are empty:

https://addons.mozilla.org/ko/firefox/addon/googlesearchdaterangeshortcut/versions/0.2.4/updateinfo/

https://addons.mozilla.org/en-GB/firefox/addon/googlesearchdaterangeshortcut/versions/0.2.4/updateinfo/

https://addons.mozilla.org/en-US/firefox/addon/googlesearchdaterangeshortcut/versions/0.2.4/updateinfo/

https://pastebin.com/Gicg1JrT