Bugzilla

**Affected versions**
*  Nightly 81.0a1 (2020-08-16)

**Affected platforms**
* Windows 10
* Ubuntu 18.04
* macOS 10.15 

**Steps to reproduce**
1. Launch Firefox. 
2. Set network.cookie.cookieBehavior = 5, privacy.partition.network_state= true and urlclassifier.trackingAnnotationTable.testEntries = known-tracker.englehardt-tracker.com. Restart the browser. 
3. Navigate to https://senglehardt.com/test/dfpi/simple.html.
4. Open the Web Console.
5. Observe the log console displayed for the storage access blocked. 
               => "Partitioned cookie or storage access was provided to “<URL>” because it is loaded in the third-party context and storage partitioning is enabled." message is displayed. 
6. Click on the "Show hide/message details." icon (the triangle pointing right).

**Expected result**
* "Partitioned cookie or storage access was provided to “https://englehardt-tracker.com/set_storage_simple.html” because it is loaded in the third-party context and storage partitioning is enabled. [Learn more]" message is displayed in the Web Console.

**Actual result**
*  The message is displayed twice in the Web Console. 

**Regression range**
* It is not a regression. 

**Additional notes**
* See attachment "issue.png". 

**Suggested severity**
* S4

**Affected versions**
*  Nightly 81.0a1 (2020-08-16)

**Affected platforms**
* Windows 10
* Ubuntu 18.04
* macOS 10.15 

**Steps to reproduce**
1. Launch Firefox. 
2. Set network.cookie.cookieBehavior = 5, privacy.partition.network_state= true and urlclassifier.trackingAnnotationTable.testEntries = known-tracker.englehardt-tracker.com. Restart the browser. 
3. Navigate to https://senglehardt.com/test/dfpi/simple.html.
4. Open the Web Console.
5. Observe the log console displayed for the storage access blocked. 
               => "Partitioned cookie or storage access was provided to “<URL>” because it is loaded in the third-party context and storage partitioning is enabled." message is displayed. 
6. Click on the "Show hide/message details." icon (the triangle pointing right).

**Expected result**
* "Partitioned cookie or storage access was provided to “https://englehardt-tracker.com/set_storage_simple.html” because it is loaded in the third-party context and storage partitioning is enabled. [Learn more]" message is displayed in the Web Console.

**Actual result**
*  The message is displayed twice in the Web Console. 

**Regression range**
* It is not a regression (the issue is also reproducible on Nightly 80.0a1). 

**Additional notes**
* See attachment "issue.png". 

**Suggested severity**
* S4