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Why do default Amazon searches append a seemingly non-Mozilla affiliate tag to the url?

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cnl9764
cnl9764

Searches using the provided Amazon search feature found in settings will always have "tag=admarketus-20" in the url. Example: https://www.amazon.com/s?tag=admarketus-20&ref=pd_sl_ [bunch of letters and numbers] &mfadid=adm&k= [search query] Now, if this were an affiliate tag for Mozilla specifically, I would understand, but googling the "admarketus-20" tag turns up posts showing that users on various other browsers (Vivaldi, Opera, Chrome) also reporting seeing this tag popping up in their searches too. I wondered if this was due to malware, but I did a fresh Firefox installation on a newly installed Win10 machine and it happens there too. Who/what is this tag for?

Searches using the provided Amazon search feature found in settings will always have "tag=admarketus-20" in the url. Example: https://www.amazon.com/s?tag=admarketus-20&ref=pd_sl_ [bunch of letters and numbers] &mfadid=adm&k= [search query] Now, if this were an affiliate tag for Mozilla specifically, I would understand, but googling the "admarketus-20" tag turns up posts showing that users on various other browsers (Vivaldi, Opera, Chrome) also reporting seeing this tag popping up in their searches too. I wondered if this was due to malware, but I did a fresh Firefox installation on a newly installed Win10 machine and it happens there too. Who/what is this tag for?

Chosen solution

Some of the searches are provided by the partners shipping their plugins and they tend to use their own ways how to capture and measure that attribution.

This partner code seems to come from this definition: https://searchfox.org/firefox-main/source/services/settings/dumps/main/search-config-overrides-v2.json

"identifier": "amazondotcom-us", "partnerCode": "admarketus-20",

So no worries, this works as intended and is safe.

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jbr
jbr

Chosen Solution

Some of the searches are provided by the partners shipping their plugins and they tend to use their own ways how to capture and measure that attribution.

This partner code seems to come from this definition: https://searchfox.org/firefox-main/source/services/settings/dumps/main/search-config-overrides-v2.json

"identifier": "amazondotcom-us", "partnerCode": "admarketus-20",

So no worries, this works as intended and is safe.

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