Description from extension meta
Hide images and videos on sites except those on the (managed) whitelist.
Description from store
Hides images and videos (img and video tags) on pages not on the whitelist. Currently, the whitelist is only settable by managed storage.
Example managed storage snippet:
{
"3rdparty": {
"extensions": {
"lkdhfblnbbodlakafihliijfalpjmfpp": {
"whitelist": "^(https?|file):\\/+((www\\.)?[^\\/]*\\.r\\-project\\.org|(www\\.)?[^\\/]*acm\\.org)"
}
}
}
}