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It has often been called "WebExtensions" or "WebExt" for a long time [1]. I wasn't even aware that it's just referred as "browser extensions" on MDN [2] now (..and the URL still uses "WebExtensions" and it's all over the actual article content. So I don't know.)

To me, 'WebExt' represents a specific specification within the broader category of browser extensions. However, since all major browsers now support this specification (and this only), it has become the de facto standard.

I hope someone more familiar with this topic can provide a more precise explanation

[1] https://developer.mozilla.org/en-US/docs/Glossary/WebExtensi...

[2] https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Web...



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