Ask HN: What browser extensions have you built for yourself?

I made an extension for my teachers that let them put a Google Doc onto Google Classroom, from the Google Doc. It's weird how Google doesn't have that built in, but it means that my teachers don't have to open up a new tab and go through the process, they can just do it from the Doc. https://addons.mozilla.org/en-US/firefox/addon/share-doc-to-...

I also made an extension that opens the current page (or link/video/image) in a popup window. Because I have so many tabs sometimes I just want one window, and it does it. I have options for half/third/full screen size so I can have them side by side (as well as just dragging to resize the window). https://addons.mozilla.org/en-US/firefox/addon/focus-popup/

I also made an extension that fixed a specific issue on Apple Intranet Wikis playing videos in Chrome, but that Wiki system isn't used anymore.

Usually my extensions are just to fix minor problems/annoyances.

I wrote one to get my Chipotle faster, back when Chipotle's online ordering didn't validate the order time server-side.

I made an extension to make Photobucket photos visible again, since last year Photobucket suddenly put all their photos behind a huge paywall last year, and destroyed a lot of knowledge on forums that I use: https://chrome.google.com/webstore/detail/photobucket-embedd...