Extract Firefox Tab Groups from `sessionstore.js`

tab_groups.jq

(
	.windows[0].extData."tabview-group" |
	fromjson |
	map({key: .id | tostring, value: .}) |
	from_entries
) as $groups |

.windows[0].tabs |
map(select(.extData."tabview-tab")) |

map({
		key: $groups[.extData."tabview-tab" | fromjson | .groupID | tostring].title,
		value: .entries[-1] | {url: .url, title: .title}
}) |

group_by(.key) |
map({key: .[0].key, value: map(.value)}) | from_entries

And later create a readable Markdown document with:

jq -r 'keys[]' tab-groups.json | while read -r group; do
  echo
  echo
  echo "$group"
  echo $(echo -n "$group" | tr -c . -)
  jq -r ".\"$group\"[] | \"- [\(.title)](\(.url))\"" tab-groups.json
done