Bug 1766997 Comment 0 Edit History

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**[Notes]:**
- This issue is **NOT** reproducible on macOS 11.6 and Linux Mint 20.2 x64.

**[Affected versions]:**
- Firefox Release 99.0.1 - Build ID: 20220411174855
- Firefox Beta 100.0 - Build ID: 20220428192727
- Firefox Nightly 101.0a1 - Build ID: 20220428214715

**[Affected Platforms]:**
- Windows 10 x64

**[Prerequisites]:**
- Have a Firefox profile with the "browser.newtabpage.activity-stream.asrouter.devtoolsEnabled" pref set to "true" in the "about:config" page.

**[Steps to reproduce]:**
1. Open the browser using the profile from the prerequisites.
2. Navigate to the "about:newtab#asrouter" page.
3. Search for the "peace-of-mind-a-rollout-global" and click the "Show" button.
4. Observe the spotlight.

**[Expected result]:**
- The "ECO" spotlight is successfully displayed and all the elements are visible.

**[Actual result]:**
- Scrollbars are wrongly displayed inside the default "ECO" spotlight.

**[Regression Window]:**
- This issue is not reproducible with the Firefox Release 98.0.2 version. Considering this using the Mozregression tool I have managed to find the following regression window:
Last good revision: 1f27d80f3ad1b439bfb1fc3d359306de32ffbfe4
First bad revision: 626b4df4561e97285ab4b018769e636fc1feea36
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1f27d80f3ad1b439bfb1fc3d359306de32ffbfe4&tochange=626b4df4561e97285ab4b018769e636fc1feea36

From the pushlog it seems that bug 1758187 has caused this regression.

@Ed, could you please take a look over this issue?

**[Additional Notes]:**
- This issue is also reproducible with the "better-internet-c-rollout-global" spotlight.
- Attached a screen recording of the issue.
**[Notes]:**
- This issue is **NOT** reproducible on Windows 11 x64, macOS 11.6, and Linux Mint 20.2 x64.

**[Affected versions]:**
- Firefox Release 99.0.1 - Build ID: 20220411174855
- Firefox Beta 100.0 - Build ID: 20220428192727
- Firefox Nightly 101.0a1 - Build ID: 20220428214715

**[Affected Platforms]:**
- Windows 10 x64
- Windows 8.1 x64

**[Prerequisites]:**
- Have a Firefox profile with the "browser.newtabpage.activity-stream.asrouter.devtoolsEnabled" pref set to "true" in the "about:config" page.

**[Steps to reproduce]:**
1. Open the browser using the profile from the prerequisites.
2. Navigate to the "about:newtab#asrouter" page.
3. Search for the "peace-of-mind-a-rollout-global" and click the "Show" button.
4. Observe the spotlight.

**[Expected result]:**
- The "ECO" spotlight is successfully displayed and all the elements are visible.

**[Actual result]:**
- Scrollbars are wrongly displayed inside the default "ECO" spotlight.

**[Regression Window]:**
- This issue is not reproducible with the Firefox Release 98.0.2 version. Considering this using the Mozregression tool I have managed to find the following regression window:
Last good revision: 1f27d80f3ad1b439bfb1fc3d359306de32ffbfe4
First bad revision: 626b4df4561e97285ab4b018769e636fc1feea36
Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1f27d80f3ad1b439bfb1fc3d359306de32ffbfe4&tochange=626b4df4561e97285ab4b018769e636fc1feea36

From the pushlog it seems that bug 1758187 has caused this regression.

@Ed, could you please take a look over this issue?

**[Additional Notes]:**
- This issue is also reproducible with the "better-internet-c-rollout-global" spotlight.
- Attached a screen recording of the issue.

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