First problem: downloading image in firefox (android) causes SIM to briefly disconnect, causing internet drops on mobile data for a few seconds. SIM provider and location - GolanTelecom Israel. The browser has about 60 tabs of google search open, cant close them due to valuable data. Disabling addons did nothing. Firefox Nightly does not have this issue, only default Firefox app. Second problem: on some sites downloading images always fails ("Download failed") in mobile version of firefox, on desktop images are downloaded fine , e.g. any post on [ https://www.pixiv.net/en/ ]