Firefox add-on with keyword - boost
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.
![Enhancer for YouTube™](https://addons.mozilla.org/user-media/addon_icons/700/700308-64.png?modified=4bc8e79f)
#1, Enhancer for YouTube™
![Enhancer for YouTube™](https://addons.mozilla.org/user-media/addon_icons/700/700308-64.png?modified=4bc8e79f)
![Volume Control [Boost volume]](https://addons.mozilla.org/user-media/addon_icons/2750/2750023-64.png?modified=33d02c4f)
#2, Volume Control [Boost volume]
![Volume Control [Boost volume]](https://addons.mozilla.org/user-media/addon_icons/2750/2750023-64.png?modified=33d02c4f)
![Notion Boost](https://addons.mozilla.org/user-media/addon_icons/2665/2665699-64.png?modified=af12ea2f)
#3, Notion Boost
![Notion Boost](https://addons.mozilla.org/user-media/addon_icons/2665/2665699-64.png?modified=af12ea2f)
![Duolingo Boost](https://addons.mozilla.org/user-media/addon_icons/820/820935-64.png?modified=1615057765)
#4, Duolingo Boost
![Duolingo Boost](https://addons.mozilla.org/user-media/addon_icons/820/820935-64.png?modified=1615057765)
![Volume Booster](https://addons.mozilla.org/user-media/addon_icons/2807/2807578-64.png?modified=55642873)
#5, Volume Booster
![Volume Booster](https://addons.mozilla.org/user-media/addon_icons/2807/2807578-64.png?modified=55642873)
![AudioBoost](https://addons.mozilla.org/user-media/addon_icons/2795/2795282-64.png?modified=d3666289)
#6, AudioBoost
![AudioBoost](https://addons.mozilla.org/user-media/addon_icons/2795/2795282-64.png?modified=d3666289)
![Speaker Booster](https://addons.mozilla.org/user-media/addon_icons/2698/2698655-64.png?modified=6881778c)
#7, Speaker Booster
![Speaker Booster](https://addons.mozilla.org/user-media/addon_icons/2698/2698655-64.png?modified=6881778c)
![Speaker Booster](https://addons.mozilla.org/user-media/addon_icons/2768/2768614-64.png?modified=51088b30)
#8, Speaker Booster
![Speaker Booster](https://addons.mozilla.org/user-media/addon_icons/2768/2768614-64.png?modified=51088b30)
![Volume Booster for YouTube™](https://addons.mozilla.org/user-media/addon_icons/2803/2803712-64.png?modified=937784e9)
#9, Volume Booster for YouTube™
![Volume Booster for YouTube™](https://addons.mozilla.org/user-media/addon_icons/2803/2803712-64.png?modified=937784e9)
![Sound Booster](https://addons.mozilla.org/user-media/addon_icons/2784/2784046-64.png?modified=b2a4fc8d)
#10, Sound Booster
![Sound Booster](https://addons.mozilla.org/user-media/addon_icons/2784/2784046-64.png?modified=b2a4fc8d)
![Better Volume Booster](https://addons.mozilla.org/user-media/addon_icons/2816/2816858-64.png?modified=44638d51)
#11, Better Volume Booster
![Better Volume Booster](https://addons.mozilla.org/user-media/addon_icons/2816/2816858-64.png?modified=44638d51)
![600% Sound Volume](https://addons.mozilla.org/user-media/addon_icons/2636/2636299-64.png?modified=58e41f88)
#12, 600% Sound Volume
![600% Sound Volume](https://addons.mozilla.org/user-media/addon_icons/2636/2636299-64.png?modified=58e41f88)
![Boost YouTube](https://addons.mozilla.org/user-media/addon_icons/979/979011-64.png?modified=0d0968ef)
#13, Boost YouTube
![Boost YouTube](https://addons.mozilla.org/user-media/addon_icons/979/979011-64.png?modified=0d0968ef)
![Steam Booster (Steam Trade Helper)](https://addons.mozilla.org/user-media/addon_icons/864/864495-64.png?modified=mcrushed)
#14, Steam Booster (Steam Trade Helper)
![Steam Booster (Steam Trade Helper)](https://addons.mozilla.org/user-media/addon_icons/864/864495-64.png?modified=mcrushed)
![FilmBoosterFF](https://addons.mozilla.org/user-media/addon_icons/888/888305-64.png?modified=c06a2a3f)
#15, FilmBoosterFF
![FilmBoosterFF](https://addons.mozilla.org/user-media/addon_icons/888/888305-64.png?modified=c06a2a3f)
![CFbooster](https://addons.mozilla.org/user-media/addon_icons/2673/2673757-64.png?modified=911795a5)
#16, CFbooster
![CFbooster](https://addons.mozilla.org/user-media/addon_icons/2673/2673757-64.png?modified=911795a5)
![Esportal Browser Boost](https://addons.mozilla.org/user-media/addon_icons/2770/2770976-64.png?modified=5fa2bd15)
#17, Esportal Browser Boost
![Esportal Browser Boost](https://addons.mozilla.org/user-media/addon_icons/2770/2770976-64.png?modified=5fa2bd15)
![RiteBoost](https://addons.mozilla.org/user-media/addon_icons/759/759784-64.png?modified=1521220823)
#18, RiteBoost
![RiteBoost](https://addons.mozilla.org/user-media/addon_icons/759/759784-64.png?modified=1521220823)
![Vocabboost](https://addons.mozilla.org/user-media/addon_icons/2688/2688416-64.png?modified=4eb5e0a2)
#19, Vocabboost
![Vocabboost](https://addons.mozilla.org/user-media/addon_icons/2688/2688416-64.png?modified=4eb5e0a2)
![Volume Booster](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#20, Volume Booster
![Volume Booster](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![MilesBooster](https://addons.mozilla.org/user-media/addon_icons/683/683328-64.png?modified=4141b75f)
#21, MilesBooster
![MilesBooster](https://addons.mozilla.org/user-media/addon_icons/683/683328-64.png?modified=4141b75f)
![ZIK booster](https://addons.mozilla.org/user-media/addon_icons/976/976220-64.png?modified=b75be69c)
#22, ZIK booster
![ZIK booster](https://addons.mozilla.org/user-media/addon_icons/976/976220-64.png?modified=b75be69c)
![Tab Mix - Links](https://addons.mozilla.org/user-media/addon_icons/930/930781-64.png?modified=mcrushed)
#23, Tab Mix - Links
![Tab Mix - Links](https://addons.mozilla.org/user-media/addon_icons/930/930781-64.png?modified=mcrushed)
![Jira Boost](https://addons.mozilla.org/user-media/addon_icons/2804/2804660-64.png?modified=0f111bb6)
#24, Jira Boost
![Jira Boost](https://addons.mozilla.org/user-media/addon_icons/2804/2804660-64.png?modified=0f111bb6)
![Bookmark Boost](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#25, Bookmark Boost
![Bookmark Boost](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)