Broken on firefox under unknown circumstances

[dawagner]

On Ubuntu 24.04, firefox snap 135.0, on the "mobile" version, I can't generate any password and I'm getting the following error in the console:

Uncaught SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data
    x https://chriszarate.github.io/supergenpass/mobile/:105
    dispatch https://chriszarate.github.io/supergenpass/mobile/:103
    handle https://chriszarate.github.io/supergenpass/mobile/:103
    add https://chriszarate.github.io/supergenpass/mobile/:103
    w https://chriszarate.github.io/supergenpass/mobile/:102
    each https://chriszarate.github.io/supergenpass/mobile/:102
    each https://chriszarate.github.io/supergenpass/mobile/:102
    w https://chriszarate.github.io/supergenpass/mobile/:102
    on https://chriszarate.github.io/supergenpass/mobile/:103
    [101]< https://chriszarate.github.io/supergenpass/mobile/:105
    e https://chriszarate.github.io/supergenpass/mobile/:101
    a https://chriszarate.github.io/supergenpass/mobile/:101
    <anonymous> https://chriszarate.github.io/supergenpass/mobile/:101

Seems to be caused by JSON.parse(b.data) with b.data:

data:
​​​    command: "getPageColorScheme"

Seems related to

supergenpass/src/mobile/sgp.mobile.js

Line 114 in 8159e14

$.each(JSON.parse(post.data), function (key, value) {

/ listenForBookmarklet . Maybe that is blocked by firefox for security reasons ? But I tried to disable everything I could think of and still couldn't make it work. I don't use the bookmarklet.