| CARVIEW |
Select Language
HTTP/2 302
cache-control: no-store
location: /en-US/docs/Plugins/Roadmap
vary: Accept
content-type: text/plain; charset=utf-8
x-cloud-trace-context: 88f56cf09b7ca1f3361963f1738a0b9a
date: Wed, 01 Oct 2025 18:25:41 GMT
server: Google Frontend
content-length: 49
via: 1.1 google
x-cache: miss
alt-svc: clear
HTTP/2 301
cache-control: max-age=2592000,public
location: /en-US/docs/Glossary/Plugin
vary: Accept
content-type: text/plain; charset=utf-8
x-cloud-trace-context: fe0c4e25b3127b1d361963f1738a060b
date: Wed, 01 Oct 2025 18:25:41 GMT
server: Google Frontend
content-length: 61
via: 1.1 google
x-cache: miss
alt-svc: clear
HTTP/2 200
x-guploader-uploadid: AAwnv3J9Tpv4nc94KAVRpmIHZjXIyFWaXApisVq8MDb-3jnwAS09hngOb8Wc0KkbcDiqj7a8VT2Xp3o
x-goog-generation: 1759280896172688
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 168953
x-goog-meta-goog-reserved-file-mtime: 1759279188
x-goog-hash: crc32c=mXw3bg==, md5=EwtQr1Tx459Sy28Q3jS+4A==
x-goog-storage-class: STANDARD
accept-ranges: none
expires: Wed, 01 Oct 2025 18:33:27 GMT
cache-control: public, max-age=3600
last-modified: Wed, 01 Oct 2025 01:08:16 GMT
etag: W/"130b50af54f1e39f52cb6f10de34bee0"
content-type: text/html
age: 3134
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: af061293c2c80e93650a2d82dcb077cf;o=1
date: Wed, 01 Oct 2025 18:25:41 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
Plugin - Glossary | MDN
Plugin
A browser plugin is a software component that users can install to handle content that the browser can't support natively. Browser plugins are usually written using the NPAPI (Netscape Plugin Application Programming Interface) architecture.
The most well-known and widely used plugin was the now outdated Adobe Flash player, which enabled browsers to run Adobe Flash content.
As browsers have become more powerful, plugins have become less useful. Plugins also have a history of causing security and performance problems for web users.
Between 2016 and 2021 browser vendors worked on a deprecation roadmap for plugins and in particular for Adobe Flash, and today plugins are no longer supported by any major browsers.
Plugins should not be confused with browser extensions, which unlike plugins are distributed as source code rather than binaries, and which are still supported by browsers, notably using the WebExtensions system.