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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Background_scripts
Background scripts - Mozilla | MDN
Background scripts or a background page enable you to monitor and react to events in the browser, such as navigating to a new page, removing a bookmark, or...
scripts mozilla mdnbackground
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Sharing_objects_with_page_scripts
Share objects with page scripts - Mozilla | MDN
As the content scripts guide notes, content scripts don't see changes made to the DOM by scripts loaded by web pages. This means that, for example, if a web...
scripts mozilla mdnshareobjects
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/user_scripts
user_scripts - Mozilla | MDN
Instructs the browser to load a script packaged in the extension, known as the API script, this script is used to export a set of custom API methods for use in...
scripts mozilla mdnuser
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_scripts
content_scripts - Mozilla | MDN
Instructs the browser to load content scripts into web pages whose URL matches a pattern.
scripts mozilla mdncontent