Page Edit vs External App Button

How do Page Edit and External App Button compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.

Directory details: Page Edit and External App Button
Directory detail	Page Edit	External App Button
What it is	Page Edit lets users make a webpage content-editable and modify it through a toolbar popup before saving or printing changes.	External Application Button adds a browser toolbar button and customizable context-menu items for launching external applications.
Website	mybrowseraddon.com/page-edit.html	webextension.org/listing/external-application-…
Type	Website	Website
Topic	Browser Extensions	Browser Extensions
Pricing	Not confirmed	Not confirmed
Platforms	Web	Browser extension, Web
Open source	Not stated	Not stated
Language	English	English
Alternatives	24 alternatives	24 alternatives