This shouldn't really be a surprise to anyone here, but:
Shopping on woolworths.com.au? If you use a browser extension that blocks facebook (like I do - using Firefox which has it by default) then the site does not work at all -- search for an item, and it just spins and nothing happens. Allow facebook access to your browsing on woolworths.com.au so they can track you across the web, and suddenly everything on woolworths.com.au starts working again. (With Firefox you can use a "Facebook container" which allows facebook to track you only on that site and no others -- still not happy about it!)
They are tracking you far and wide across the web, watching your shopping habits even when you aren't logged in to facebook at all. It should be illegal, but they have very deep pockets to donate to governments all over the world.
#DeleteFacebook <- this means delete the entire company and codebase from existence, not the FB app, but do that too!
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