- increase video and audio speed with single click by 0.25 ratio.
- decrease video speed down to 0 (pause)
- no upper speed limit so you can fast forward movies or ads.
- By:
- no9
- Daily users:
- 1,803 -4
- Rating:
- 4.45 (22)
- Version:
- 1.5.7.3 Last updated: 2022-10-18
- Version code:
- 5472882
- Creation date:
- 2018-03-24
- Risk:
- Moderate risk impact Low risk likelihood
- Permissions:
- contextMenus
- activeTab
- http://*/*
- https://*/*
- file:///*/*
- contextMenus
- Size:
- 50.60KB
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Updated:
- a day ago
Ranking
Other platforms
User reviews
Pros
- Easy to use and very useful for increasing video playback speed.
- Works reliably to control video speed on Firefox.
- Allows speed adjustment beyond YouTube's default maximum of 2.0x.
- Helps users watch videos faster, saving time.
- Lightweight and convenient for everyday use.
Cons
- Speed adjustment increments are limited to 0.25 steps, users want finer control like 0.1 increments.
- User interface design is basic and could be improved with better buttons or integration.
- Settings like speed changes are not remembered by websites across sessions.
- Lacks hotkeys or keyboard shortcuts for easier usage.
- Some users prefer controls integrated directly into the video player rather than separate icons.
Recent reviews
by Fi*****, 2025-06-02
by 全民*****, 2025-04-02
by 远离*****, 2025-02-15
Extension safety
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk
impact extension cannot do much harms, whereas a high risk impact extension can do a lot of
damage like stealing your password, bypassing your security settings, and accessing your
personal data. High risk impact extensions are not necessarily malicious. However, if they
do turn malicious, they can be very harmful.
Video Speed Up requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious.
This is determined by the publisher and the Firefox add-on reputation on
Firefox Browser Add-ons, the amount of time the Firefox add-on has been
around, and other signals about the
Firefox add-on. Our algorithms are not perfect, and are subject to change
as we discover new ways to detect malicious extensions. We recommend that you always
exercise caution when installing a Firefox add-on.
Video Speed Up has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Compare add-ons
- Compare Video Speed Up vs Media Speed Up
- Compare Video Speed Up vs Video Speed Setter
- Compare Video Speed Up vs YouTube Speed Adjuster
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