While it's mostly good, it:

- breaks the ctrl+shift+i shortcut (open dev tools) quite frequently, even if you've disabled it in the addon's config. This is incredibly annoying, and you have to disable and re-enable the addon to fix it.
- randomly stops working on long-running webpages, eg your email client, eg the thing you're going to want to push lots of articles from.

2 stars may seem harsh, because when it works it works, but the entire goal is "send a URL to an API", so I think the bar could be set a little higher than "works occasionally"

It used to save articles instantly, but now it's taking 4-5 seconds of "Saving..." before it shows "Saved."

Please address the conflict between the Instapaper keyboard shortcut and Firefox screen capture. This is very important to me.

Love Instapaper, but very disappointed that they haven't addressed a known bug for over two years. The keyboard shortcut for this Add-on (Ctrl-Shift-S) conflicts with the built-in Firefox shortcut to launch Developer Tools.

提供快速儲存文章的功能之外本身就沒有其他作用了，連連線至服務的功能都沒有實在是很失敗的擴充功能。保持簡單的機能是很好的事情，但不至於連開啟服務的連結都沒有吧，這怎麼想都覺得不該省略的機能。