Please read the whole question carefully, I am looking for a very specific functionality

I am looking for a self hosted pocket alternative

There are quite a few out there that I've looked at however I have quite a specific requirement..

When using pocket I used a firefox extension / add-on: In My Pocket

This extension / add-on had a relatively simple feature which is essential to me

It has a buttons which summons a little drop-down menu which lists all your saved url

It has a search box and every url has a button to remove it from the list

Does anyone have any recommendations for a self hosted application which has a Firefox extension / add-on including this functionality? (Dropdown, search box, button to remove url / bookmark)

Thanks in advance!