1564878 - Firefox Developer Edition do not inspect DOM in responsive mode

Status: RESOLVED DUPLICATE of bug 1486717

(Firefox :: Untriaged, defect)

Description

[cappelli.mauro]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

Steps to reproduce:

• go to https://www.google.com/
• press F12 to activate the developer tools
• click the icon to activate the responsive design mode
• right click any page element (like the logo, or the buttons)
• select "inspect element"

Actual results:

nothing happened

Expected results:

Firefox should have opened the DOM inspector and selected the right clicked element.

NOTE: when Firefox IS NOT in responsive design mode the inspection works
NOTE: Windows 10 Professional 64bit - build 17134

Comment 1

[cappelli.mauro]

Firefox version: 69.0b3

Comment 2

[Davbog]

I have a similar issue. In Firefox Developer Edition, if I right click an object on a webpage, I can click inspect. (Now close the inspector). If I am in Responsive Design View (Shift + Ctrl + M), and then I click inspect, it loads the inspector, but the actual page code is grayed out and the inspector is not highlighting the object I inspected.

Firefox Developer Edition: 69.0b3

Occasionally, in regular Firefox this happens too, but it appears to be hit or miss as to the trigger. If it doesn't work, I can close the inspector and try to re-inspect it -- then it works again.

Comment 3

[frederic]

Same problem there on 69.xx versions (nightly and developer edition), reproduced on MacOS and Windows10.

Comment 4

[Alin Ilea, Desktop Test Engineering]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Hi,

This issue is a duplicate of bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1486717

Thanks for the report.