Facebook Custom Audience 2026-06-09
Just checking Facebook "download your information" and got this:
```
{
"timestamp": 1781017200,
"label_values": [
{
"label": "Date",
"value": "2026-06-09"
},
{
"label": "Business or organization",
"value": "Firefox",
"description": "The business or organization that added you to a Custom Audience"
}
]
},
```
Is this actual Firefox passing my info to Meta, or some Meta scammer pretending to be Firefox?
On that date, I had Global Privacy Control turned on in Firefox.
Alle Antworten (3)
I'd say the opposite — in case an agency is planning to run some ads or paid content for demographics not using Firefox yet, they might want to avoid current users, segmenting them out based on user agents used to access the account in past.
(Or, if you interacted with any paid Firefox content on Meta surfaces already, you might also be put into a cohort seeing things or starting funnels over at their side I guess?)
Thank you. This doesn't look like it's coming from the Meta side or from an agency.
The "business or organization" is just "Firefox" -- is this really Firefox doing it, or is someone impersonating Firefox on Meta (in which case I should report them to Meta since it might be one of those fake Firefox download sites)
Does Firefox use Facebook Custom Audiences, and if so, was I added to one?
You'd need to get in touch with Meta what profile or ID is behind the "Firefox" identifier — but if they literally mean the unique profile names as in facebook.com/Firefox, then yes, "Firefox" is a Mozilla–operated official profile, and might have excluded you from paid advertising if you're already segmented out as an existing user using this cohort mechanism.
(If the question is whether Firefox "the browser" uses anything Facebook then no, the source code is available to anyone and there's no proprietary magic as Meta SDKs in it or endpoints contacted if that's what you were asking.)
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