Firefox add-on with keyword - screen caster
Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.
There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.
To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.
![Theater Mode for YouTube™ (YouTube Wide Screen)](https://addons.mozilla.org/user-media/addon_icons/789/789369-64.png?modified=7dc738cd)
#1, Theater Mode for YouTube™ (YouTube Wide Screen)
![Theater Mode for YouTube™ (YouTube Wide Screen)](https://addons.mozilla.org/user-media/addon_icons/789/789369-64.png?modified=7dc738cd)
![Pikaso - Screenshot Twitter](https://addons.mozilla.org/user-media/addon_icons/2643/2643091-64.png?modified=60bbc020)
#2, Pikaso - Screenshot Twitter
![Pikaso - Screenshot Twitter](https://addons.mozilla.org/user-media/addon_icons/2643/2643091-64.png?modified=60bbc020)
![YouTube Screenshoter](https://addons.mozilla.org/user-media/addon_icons/2708/2708105-64.png?modified=1aed1f01)
#3, YouTube Screenshoter
![YouTube Screenshoter](https://addons.mozilla.org/user-media/addon_icons/2708/2708105-64.png?modified=1aed1f01)
![Screen Shutter](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#4, Screen Shutter
![Screen Shutter](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![Stealth Mode Privacy Screen](https://addons.mozilla.org/user-media/addon_icons/2616/2616358-64.png?modified=4c022ba6)
#5, Stealth Mode Privacy Screen
![Stealth Mode Privacy Screen](https://addons.mozilla.org/user-media/addon_icons/2616/2616358-64.png?modified=4c022ba6)
![Pinterest Love: Pinterest Screenshot Saver++](https://addons.mozilla.org/user-media/addon_icons/2715/2715661-64.png?modified=e2051a78)
#6, Pinterest Love: Pinterest Screenshot Saver++
![Pinterest Love: Pinterest Screenshot Saver++](https://addons.mozilla.org/user-media/addon_icons/2715/2715661-64.png?modified=e2051a78)
![Instill Screencast Recording](https://addons.mozilla.org/user-media/addon_icons/685/685105-64.png?modified=1513610424)
#7, Instill Screencast Recording
![Instill Screencast Recording](https://addons.mozilla.org/user-media/addon_icons/685/685105-64.png?modified=1513610424)
![Device Screen Tester](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#8, Device Screen Tester
![Device Screen Tester](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![Mobile Screen Tester Pro](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#9, Mobile Screen Tester Pro
![Mobile Screen Tester Pro](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![MobileScreen Tester](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#10, MobileScreen Tester
![MobileScreen Tester](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#11, Telecaster Palo Escrito
#12, widescreen butterfly
![Computub Screenshotter](https://addons.mozilla.org/user-media/addon_icons/2653/2653064-64.png?modified=56979aab)
#13, Computub Screenshotter
![Computub Screenshotter](https://addons.mozilla.org/user-media/addon_icons/2653/2653064-64.png?modified=56979aab)
![Pinterest True Fullscreen](https://addons.mozilla.org/user-media/addon_icons/2843/2843821-64.png?modified=731313cc)
#14, Pinterest True Fullscreen
![Pinterest True Fullscreen](https://addons.mozilla.org/user-media/addon_icons/2843/2843821-64.png?modified=731313cc)
![xatImages Screenshoter](https://addons.mozilla.org/user-media/addon_icons/2656/2656911-64.png?modified=30bbce8b)
#15, xatImages Screenshoter
![xatImages Screenshoter](https://addons.mozilla.org/user-media/addon_icons/2656/2656911-64.png?modified=30bbce8b)
![MobileScreen Master](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#16, MobileScreen Master
![MobileScreen Master](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)