Hello Firefox User

I'm Sorry that the extension didn't meet your expectations.

During my testing, I haven't had any issues searching though a large playlist of 4,000+ videos in it and wasn't able to replicate the bug on my system where a video that was searched would disappear as it continues searching the playlist.

When It comes down to the extension using a lot of memory, when testing, there was lag during the search but once the search is done, you should be able to scroll with minimal lag and searching for other videos in that playlist would be a lot faster once all videos in the playlist are loaded.

To help with the tab lag, turn auto scroll off in the extension if it's on, you can then manually scroll to find video's that match the keyword, group, etc. which should cause less lag in the tab. It will also depend on how many tabs you have opened in the browser and the amount of ram your computer has.

For the video's disappearing when searching, please contact at contact.sudotronics@gmail.com with a video example if you can, since I wasn't able to replicate the issue on my end.

Thank you for giving the extension a try and If you run into any other issues, please do let me know. 👍