mirror of
https://github.com/mdn/webextensions-examples.git
synced 2026-04-19 15:54:00 +02:00
Kumar McMillan
20 lines
628 B
Markdown
20 lines
628 B
Markdown
# apply-css
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## What it does
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This extension includes:
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* a background script, "background.js"
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* a page action
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It adds the [page action](https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/pageAction)
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to every tab the user opens. Clicking the page action
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for a tab applies some CSS using [tabs.insertCSS](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/insertCSS).
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Clicking again removes the CSS using [tabs.removeCSS](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/tabs/removeCSS).
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## What it shows
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* some basic page action functions
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* how to apply and remove CSS.
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