If you see this line, then your browser didn't start the popup script yet. This is a problem caused by the browser. Please wait a few seconds.

How should extension work in general?
NOTE: settings will be applied when page is reloaded.

Enable everywhere except blacklist
Enable only on whitelisted sites
Disable extension on all sites

How should extension work on this site?
NOTE: this doesn't apply to embedded videos!
NOTE: settings will be applied when page is reloaded.

Follow global rules
Always block (blacklist)
Always allow (whitelist)

Some settings will only apply after reload. Settings don't apply to videos embedded from other sites.

Enable this extension:

Always On whitelisted sites Never

Options for this site:

Blacklist Default Whitelist

Enable autodetection:

Always On whitelisted sites Never

Check every ms — Save

Options for this site:

Blacklist Default Whitelist

No videos were detected on this page. The buttons may not work at all. Check that this site is not blacklisted and reload the page.

Cropping mode

Auto-detect
Reset
21:9
2:1 (18:9)
16:9

Stretching mode
Stretching is independent of crop mode. Crop gets applied before stretching.

Never
Basic
Hybrid
Thin borders

Video alignment:

left center right

If zoomed in video doesn't align properly, try enabling or disabling certain CSS rules below:

Ultrawidify version:

Having an issue?
Report ~~undocumented features~~ bugs via one of the following channels:

Github (strongly preferred)
PM me on reddit
Email: tamius.han@gmail.com

When reporting an issue, don't forget to include some details. Don't forget to mention your BROWSER (Firefox or Chrome), browser version, and extension version (see above).

Please DON'T just say "dont work pls fix"

Please DO Provide some information about the issue. Briefly describe what did you do to make the issue appear. If issue only happens with certain videos, include links to problematic videos.