URL: www.amazon.fr
Browser / Version: Firefox Mobile Nightly 55.0a1 (2017-04-25)
Operating System: Samsung Galaxy Note 4 (Android 5.0.1)
Problem type: Something else - I'll add details below

Steps to Reproduce

1. Navigate to: www.amazon.fr
2. Tap the Login button.
3. Tap on the "Show password" and "Keep me logged in" checkboxes to enable/disable them. Observe the behavior.

Expected Behavior:
The checkboxes are Checked/Not checked after one tap.

Actual Behavior:
The checkboxes need more than one tap to change state.

Notes:

1. The issue is also reproducible on on Firefox 52.0 Release (Mobile).
2. The issue is not reproducible on Chrome (Mobile) 57.0.2987.132.
3. Screen capture attached.

Watchers:
@softvision-oana-arbuzov
@softvision-sergiulogigan

sv; country: fr

device-2017-04-26-170032.zip

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