Add buttons to download images and videos in Twitter, also does some other enhancements.
Thanks for the report.
I also have noted that videos have stopped to run automatically, but I think that because of Twitter changed it.
But yes, it because of the userscript's function hideSignUpBottomBar which just adds CSS to hide the bottom sign up bar.
OK, I can fix that: instead of display: none; I can just use height: 1px; opacity: 0;.
I will fix it the next release, and I also will add the new parameter for hideSignUpBottomBar — doNotPlayVideosAutomatically with false by default.
此版本导致页面上的GIF和MP4无法自动播放。