**Affected versions** - latest Nightly 67.0a1 **Affected platforms** * Windows 10 x64 * macOS 10.13 * Ubuntu 16.04 x64 **Prerequisites** Set the following prefs to true in about:config - privacy.trackingprotection.cryptomining.enabled - privacy.trackingprotection.fingerprinting.enabled - browser.contentblocking.cryptomining.preferences.ui.enabled - browser.contentblocking.fingerprinting.preferences.ui.enabled **Steps to reproduce** 1. Launch Firefox on a clean profile. 2. Go to the following test page https://senglehardt.com/test/trackingprotection/test_pages/fingerprinting_and_cryptomining.html **Expected result** - The shield icon is turn on, and Cryptominers/Fingerprinters are blocked on the test page. **Actual result** - The shield icon doesn't turn on, and Cryptominers/Fingerprinters are NOT blocked on the test page. **Regression range** - Not a regression, I was able to reproduce this on 67.0a1 (2019-02-12) as well, when this feature first landed. **Additional notes** - It seems that this issue happens only on clean profiles, after leaving the Firefox idle for a couple of the minutes the blocking starts to work again correctly.
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**Affected versions** - latest Nightly 67.0a1 **Affected platforms** * Windows 10 x64 * macOS 10.13 * Ubuntu 16.04 x64 **Prerequisites** Launch Firefox on a clean profile. Set the following prefs to true in about:config - privacy.trackingprotection.cryptomining.enabled - privacy.trackingprotection.fingerprinting.enabled - browser.contentblocking.cryptomining.preferences.ui.enabled - browser.contentblocking.fingerprinting.preferences.ui.enabled **Steps to reproduce** 1. Go to the following test page https://senglehardt.com/test/trackingprotection/test_pages/fingerprinting_and_cryptomining.html **Expected result** - The shield icon is turn on, and Cryptominers/Fingerprinters are blocked on the test page. **Actual result** - The shield icon doesn't turn on, and Cryptominers/Fingerprinters are NOT blocked on the test page. **Regression range** - Not a regression, I was able to reproduce this on 67.0a1 (2019-02-12) as well, when this feature first landed. **Additional notes** - It seems that this issue happens only on clean profiles, after leaving the Firefox idle for a couple of the minutes the blocking starts to work again correctly.
**Affected versions** - latest Nightly 67.0a1 **Affected platforms** * Windows 10 x64 * macOS 10.13 * Ubuntu 16.04 x64 **Prerequisites** Launch Firefox on a clean profile. Set the following prefs to true in about:config - privacy.trackingprotection.cryptomining.enabled - privacy.trackingprotection.fingerprinting.enabled - browser.contentblocking.cryptomining.preferences.ui.enabled - browser.contentblocking.fingerprinting.preferences.ui.enabled **Steps to reproduce** 1. Go to the following test page https://senglehardt.com/test/trackingprotection/test_pages/fingerprinting_and_cryptomining.html **Expected result** - The shield icon is turn on, and Cryptominers/Fingerprinters are blocked on the test page. **Actual result** - The shield icon doesn't turn on, and Cryptominers/Fingerprinters are NOT blocked on the test page. **Regression range** - Not a regression, I was able to reproduce this on 67.0a1 (2019-02-12) as well, when this feature first landed. **Additional notes** - It seems that this issue happens only on clean profiles, after leaving the Firefox idle for a couple of hours the blocking starts to work again correctly.