Bugzilla

**[Affected versions]:**
- Firefox Nightly 75.0a1 Build ID: 20200228092428
**[Affected Platforms]:**
- Windows 10 x64
- macOS 10.15
- Arch Linux 5.3.6 x64
**[Prerequisites]:**
- Have the value of the pref `browser.newtabpage.activity-stream.discoverystream.endpoints` set to `http,https`.
- Have the value of the pref `browser.newtabpage.activity-stream.discoverystream.config` set to `{"api_key_pref":"extensions.pocket.oAuthConsumerKey","collapsible":true,"enabled":true,"show_spocs":true,"hardcoded_layout":false,"personalized":true,"layout_endpoint":"https://e5e8374d-fffa-4a77-a604-31603852b6fd.mock.pstmn.io/1615081-layout"}`.
- Have the value of the pref` browser.search.region` set to `US`.
**[Steps to reproduce]:**
1. Open the browser with the profile from prerequisites.
2. Open a new tab and hover a card from the “Collection” section.
3. Click the “Open menu” button and select the “Dismiss” option.
4. Observe the “Collection” section.
**[Expected result]:**
- The “Collection” section only has 2 cards left and the dismissed card disappears.
**[Actual result]:**
- The “Collection” section is completely dismissed.
**[Notes]:**
- This issue is also reproducible if the “Archive to pocket” or “Delete from Pocket” options are selected instead.
- If a “Sponsored Card” from the “Recommended by Pocket” section that has a URL shared with a card from the “Collection” section is dismissed, archived, or deleted from Pocket, the whole “Collection” section is dismissed.
- Attached a screen recording of the issue.

**[Affected versions]:**
- Firefox Nightly 75.0a1 Build ID: 20200228092428

**[Affected Platforms]:**
- Windows 10 x64
- macOS 10.15
- Arch Linux 5.3.6 x64

**[Prerequisites]:**
- Have the value of the pref `browser.newtabpage.activity-stream.discoverystream.endpoints` set to `http,https`.
- Have the value of the pref `browser.newtabpage.activity-stream.discoverystream.config` set to `{"api_key_pref":"extensions.pocket.oAuthConsumerKey","collapsible":true,"enabled":true,"show_spocs":true,"hardcoded_layout":false,"personalized":true,"layout_endpoint":"https://e5e8374d-fffa-4a77-a604-31603852b6fd.mock.pstmn.io/1615081-layout"}`.
- Have the value of the pref` browser.search.region` set to `US`.

**[Steps to reproduce]:**
1. Open the browser with the profile from prerequisites.
2. Open a new tab and hover a card from the “Collection” section.
3. Click the “Open menu” button and select the “Dismiss” option.
4. Observe the “Collection” section.

**[Expected result]:**
- The “Collection” section only has 2 cards left and the dismissed card disappears.

**[Actual result]:**
- The “Collection” section is completely dismissed.

**[Notes]:**
- This issue is also reproducible if the “Archive to pocket” or “Delete from Pocket” options are selected instead.
- If a “Sponsored Card” from the “Recommended by Pocket” section that has a URL shared with a card from the “Collection” section is dismissed, archived, or deleted from Pocket, the whole “Collection” section is dismissed.
- Attached a screen recording of the issue.