https://www.bleepingcomputer.com/news/security/google-microsoft-and-mozilla-work-together-on-better-browser-extensions/

Google, Microsoft, Apple, and Mozilla have launched the WebExtensions Community Group (WECG) to collaborate on standardizing browser extensions to enhance both security and performance.

"With multiple browsers adopting a broadly compatible model for extensions in the last few years, the WECG is excited to explore how browser vendors and other interested parties can work together to advance a common browser extension platform," the browser vendors said.