Bugzilla

**Found in**
* 138.0a1

**Affected versions**
* 138.0a1

**Tested platform**
* Windows 10

**Preconditions**
* Have set in about:config:
* browser.search.region - CA

**Steps to reproduce**
1. Go to https://saje.ca and reach the shipping address form.
2. Fill in manually new Address info and submit the form.

**Expected result**
* The "Save Address" doorhanger should appear after the form is submitted.

**Actual result**
* The "Save Address" doorhanger does not appear after the form is submitted.


**Regression range**
* Seems to be a regression from March 2nd, here is the pushlog found using mozregression: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2879c26ed4ccd7a9b005c95872bbf91bde6dc001&tochange=543c21c8e3522666952061bdfbeef2300733243d

**Additional notes**
* The address capture doorhanger IS displayed with the extensions.formautofill.addresses.capture.requiredFields set to empty.
* The address capture doorhanger IS displayed in Nightly 137 by default, without set the extensions.formautofill.addresses.capture.requiredFields to empty.
* [Downloaded page](https://drive.google.com/file/d/1ra6EXNsq1H3ZfhazYlmjz9K-szI8cbjf/view?usp=drive_link).

**Found in**
* 138.0a1

**Affected versions**
* 138.0a1

**Tested platform**
* Windows 10

**Preconditions**
* Have set in about:config:
* browser.search.region - CA

**Steps to reproduce**
1. Go to https://saje.ca and reach the shipping address form.
2. Fill in manually new Address info and submit the form.

**Expected result**
* The "Save Address" doorhanger should appear after the form is submitted.

**Actual result**
* The "Save Address" doorhanger does not appear after the form is submitted.


**Regression range**
* Seems to be a regression from March 2nd, here is the pushlog found using mozregression: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2879c26ed4ccd7a9b005c95872bbf91bde6dc001&tochange=543c21c8e3522666952061bdfbeef2300733243d

**Additional notes**
* The address capture doorhanger IS displayed with the extensions.formautofill.addresses.capture.requiredFields set to empty.
* The address capture doorhanger IS displayed in Nightly 137 by default, without set the extensions.formautofill.addresses.capture.requiredFields to empty.
* By setting the following preferences to false, will still NOT trigger the capture doorhanger:
extensions.formautofill.heuristics.detectDynamicFormChanges
extensions.formautofill.heuristics.fillOnDynamicFormChanges
* [Downloaded page](https://drive.google.com/file/d/1ra6EXNsq1H3ZfhazYlmjz9K-szI8cbjf/view?usp=drive_link).