### Affected versions * Firefox Nightly 72.0a1 (2019-10-30) and Firefox 71.0b5 ### Affected platforms * macOS 10.14 * Windows 10 x64 * Ubuntu 18.04 x64 ### Steps to reproduce 1. Launch Firefox. 2. Go to about:preferences#privacy and from Custom section un-check all items expect for "Fingerprinters". 3. Go tohttps://asales.pro/ or https://www.setlcity.ru/ ### Expected result * "Callback service buttons are not displayed on the websites ### Actual result * Callback services aren't displayed when "eyenewton.eu" fingerprinter is blocked * Screenshot: https://imgur.com/a/qD4fGmy , https://imgur.com/a/1JqMDjT ### Fingerprinters Blocked * eyenewton.eu
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### Affected versions * Firefox Nightly 72.0a1 (2019-10-30) and Firefox 71.0b5 ### Affected platforms * macOS 10.14 * Windows 10 x64 * Ubuntu 18.04 x64 ### Steps to reproduce 1. Launch Firefox. 2. Go to about:preferences#privacy and from Custom section un-check all items expect for "Fingerprinters". 3. Go to https://asales.pro/ or https://www.setlcity.ru/ or https://topdetal.ru/ ### Expected result * "Callback service buttons are not displayed on the websites ### Actual result * Callback services aren't displayed when "eyenewton.eu" fingerprinter is blocked * Screenshot: https://imgur.com/a/qD4fGmy , https://imgur.com/a/1JqMDjT ### Fingerprinters Blocked * eyenewton.eu