Create Simple Toolbar extension for Firefox, Opera and Edge

We already have a simple toolbar for our users called as the "Dirt Farmer's Toolbar" which is basically just links to our most accessed pages, along with a search bar that searches our website for related content. We already have versions for Firefox and Chrome, but with the recent changes in FF 57, the add-on is totally incompatible and needs to be fixed. Need the same to be ported to Opera and Edge too. Below is link of the Chrome Store add-on: [login to view URL] Here is link to the existing Mozilla Add-on: [login to view URL] I can provide the icon images and existing files for the same if we come to an agreement. Please provide quote for porting it to all the 3 browsers... New Mozilla, Opera and Edge