1680414 - When clicking rapidly in Responsive Design Mode, Firefox adds an extra click

Status: NEW

(DevTools :: Responsive Design Mode, defect, P3)

Description

[Tyler Gross]

Attachment: index.html

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:83.0) Gecko/20100101 Firefox/83.0

Steps to reproduce:

This is a weird one. This only happens in Responsive Design Mode. Open up a page in Responsive Design Mode, then, on a page with a button, click rapidly (rapidly being the most important part!) twice.

Actual results:

When using Responsive Design Mode, if you click 2 times rapidly in succession, Firefox will count 3 clicks.

Expected results:

Firefox should have registered 2 clicks instead of 3.

Comment 1

[Tyler Gross]

I tried this on two different Macs in Big Sur if that helps, but did not try on Windows.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 3

[Razvan Caliman [:rcaliman]]

Attachment: touch simulation enabled

This is related to touch simulation. If the feature is disabled, clicks seem to be counted accurately.
The toggle for touch simulation is found at the top of the toolbar of the Responsive Design Mode panel.