Open "about:debugging#/runtime/this-firefox", paste the following code into devtools console (F12) and copy the result:

let data = {}
const section = document.querySelector('article > section:nth-of-type(2)')
for(const ext of section.querySelectorAll('ul.debug-target-list > li')){
  const title = ext.querySelector('[title]').title
  const uuid = ext.querySelector('section > dl dd').textContent
  data[uuid] = title
}
console.log(JSON.stringify(data))

Paste the result string here:

Open "about:config" and find "browser.uiCustomization.state". Copy its value here:

Drag and drop to reorder:

Please paste data.