We support playback in browsers that can decode H.264 videos in an HTML5 player. Due to rising security vulnerabilities, we no longer support Flash. If you’re using an older browser, system, or website, you’ll need to upgrade to continue watching videos.
Here is a list of our supported browsers/versions:
- Chrome 30+ (has automatic updates)
- Firefox 27+ (has automatic updates)*
- Microsoft Edge
- Safari 9+
*H.264 video (required for viewing Vimeo videos) is only supported in Firefox for Windows 7 and later. Firefox versions on Windows XP are no longer supported for playback.
Note, the Samsung Internet browser (all versions) is also not supported. We recommend installing Chrome instead.
Supported Operating Systems:
The player operates in a wide range of operating systems, but we can only guarantee full functionality on systems that are still being supported by their proprietors.
Microsoft has ended support for Windows XP and Windows Vista.
The earliest version of MacOS still receiving extended support from Apple is Sierra (v. 10.12.6), and support for it is rumored to end in September 2019. Earlier versions of MacOS (El Capitan, Yosemite, Mavericks, etc) are not supported.
Android (Marshmallow) version 6.0+
iOS version 12.4+
⚠️ Blackberry and Windows phone users: You may still able to view Vimeo videos on devices that support HTML5; however, we do not test out our player in these environments and thus cannot guarantee support.
Playback for live events is supported on any setup that supports H.264 videos, HTML5, and Media Source (specifically required for our adaptive streaming system).
Please see our supported systems for playback above, with the following exceptions:
- Internet Explorer 11 on Windows 7 and earlier is not supported.
- The Samsung Internet browser (all versions) is also not supported. We recommend installing Chrome instead.
Internet Connection requirements:
We require minimum stable download speeds of 500 kbps or faster in order to view our lowest quality, SD 240p. Since bandwidth tends to fluctuate for a number of unforeseen variables, we always recommend you use a dedicated Internet line of 5 Mbps or faster to stream and download high-quality videos on the Internet. For optimal performance, a hardwired connection via Ethernet is best, but if you prefer to use WiFi, be sure that your router is configured correctly and that your network is not being shared with other devices (this can limit the starting speeds you pay your ISP for).
- Review the system recommendations above and be sure your device complies.
- Try to be sure that no other applications or browser windows are open on your computer. To be sure, restart your computer.
- If you don’t see the program playing, try “reloading” the web page.
- Be sure the volume is turned up on your speakers or headphones. Also, check the volume and audio output of your device.
- For best results, try to use a hardwired connection, not WiFi or mobile data. All connections should work, but the quality may be reduced.
Playback Quality and Buffering Issues:
Videos are viewable in a variety of different qualities. In “Auto” mode, the player switches between all available qualities to accommodate changes in the viewer’s Internet, processing speed, and player size.
The quality of your playback experience is largely dependent on how your ISP (Internet Service Provider) or mobile provider connects to our playback servers. Keep in mind that your overall Internet speed can vary depending on many factors, including but not limited to: time of day, WiFi performance, other devices/ users utilizing your connection, and the strength of the signal provided by your ISP.
The following table shows the minimum speeds required for each playback quality:
Quality Required Minimum Bandwidth
240p 500 kbps
360p 1 Mbps
720p 3 Mbps
1080p 7 Mbps
When a video plays in lower than expected quality, it’s likely because the viewer’s Internet speed (bandwidth) or computer processing speed cannot support higher quality playback. Viewers can manually force a particular quality by selecting the gear icon in the lower right corner of the player. (This may result in frequent buffering if the bandwidth does not meet the required minimum outlined above.)