In reality, the text is on one line, the following example is sort of prettyfied.
{"schema":6,"addons":[
{ "id" :"vim-vixen@i-beam.org",
"icons" :{
"32" :"https://addons.cdn.mozilla.net/user-media/addon_icons/859/859695-32.png?modified=1569821701",
"64" :"https://addons.cdn.mozilla.net/user-media/addon_icons/859/859695-64.png?modified=1569821701",
"128":"https://addons.cdn.mozilla.net/user-media/addon_icons/859/859695-128.png?modified=1569821701"
},
"name" :"Vim Vixen",
"version" :"0.30",
"sourceURI" :"https://addons.mozilla.org/firefox/downloads/file/3625022/vim_vixen-0.30-an+fx.xpi?src=",
"homepageURL" :"https://github.com/ueokande/vim-vixen",
"supportURL" :"https://github.com/ueokande/vim-vixen/issues/",
"description" :"Accelerates your web browsing with Vim power!!",
"fullDescription":"Basic usage\n\n- h, j, k, l: scroll left, down, right, up, and right\n- j, k: scroll vertically\n- h, l: scroll horizontally\n- Ctrl+U, Ctrl+D: scroll pages by half of screen\n- Ctrl+B, Ctrl+F: scroll pages by a screen\n- 0, $: scroll a page to leftmost/rightmost\n- gg, G: scroll to top/bottom\n\n- gg, G: scroll to top and bottom\n- d: delete current tab\n- u: reopen close tab\n- K, J: select prev or next tab\n- r: reload current tab\n- zp: toggle pin/unpin current tab\n- zd: duplicate current tab\n\n- f: start following links in the page\n- H: go back in histories\n- L: go forward in histories\n- [[, ]]: find prev or next links and open it\n- gu: go to parent directory\n- gU: go to root directory\n\n- :: open console\n- o, t, w: open a page in current tab, new tab, or new window\n- O, T, W: similar to o, t, w, but that contains current URL\n- b: Select tabs by URL or title\n- zi, zo: zoom-in/zoom-out\n- zz: Set default zoom level\n- y: copy URL in current tab\n- Shift+Esc: enable or disable the add-on in current tab.",
"weeklyDownloads":758,
"type" :"extension",
"creator" :{
"name" :"Shin'ya Ueoka",
"url" :"https://addons.mozilla.org/en-US/firefox/user/13223849/"},
"developers" :[],
"screenshots":[
{"url" :"https://addons.cdn.mozilla.net/user-media/previews/full/189/189540.png?modified=1543520904",
"width" :700,
"height" :525,
"thumbnailURL" :"https://addons.cdn.mozilla.net/user-media/previews/thumbs/189/189540.png?modified=1543520904",
"thumbnailWidth" :640,
"thumbnailHeight":480
},
{
…
}
],
"contributionURL":"",
"averageRating":4.6667,
"reviewCount" :116,
"reviewURL" :"https://addons.mozilla.org/en-US/firefox/addon/vim-vixen/reviews/",
"updateDate" :1597290315000
}
]
}