This script adds a small section labeled "Thumbnails" in between the video and the title on YouTube video pages. When clicked, it expands to show a full set of video thumbnails, including timestamps. Click an individual time or image to jump to that point in the video. Click the heading again to hide the thumbnails.

Please note that it can take YouTube a few hours to generate thumbnails for newly posted videos. If there are no thumbnails available, the section will say "No Thumbnails Available" (also happens with very old videos).

(Tested in Firefox with Greasemonkey and Chrome with Tampermonkey. Please give me feedback if you have any issues!)

Changelog:
0.4.2:
Fixed compatibility with old YouTube layout.

0.4.1:
Fixed some issues with YouTube's dynamic loading.

0.4.0:
Fixed to work with YouTube's new layout.

0.3.5:
Should now work when navigating from non-video pages.
And butts.

0.3.4:
Small change to hopefully work with YouTube's SPF.

0.3.3:
Now displays "No Thumbnails Available" if YouTube hasn't generated thumbnails for the video.

0.3.2:
Now scrolls to the video when clicking a thumbnail.
Fixed some issues with weird layout of the time links within the table cells.

0.3:
You can now click on a thumbnail image to jump to that time in the video.

0.2.1:
Fixed collapsing of thumbnails.

0.2:
Initial Release.