Some websites still have old links to Watchizu. This extension redirects you to GSI Maps when you click on the links to Watchizu like the one below.
http://watchizu.gsi.go.jp/watchizu.html?longitude=138.727412&latitude=35.360601

Install

• License: MIT License
• Weekly downloads: 0
• Average daily users: 0
• Rating: 0/5 of 0 ratings
• Created: 2022-03-20 09:50:29
• Last updated: 2022-03-21 10:16:44
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/watchi-link/
• API: {02fbb301-5049-42d1-8d3d-27f239f61175}