$User.UIThemeDisplayed works incorrectly under FireFox browser in Windows machines
Trailblazer Community

Known Issues · Fixed

$User.UIThemeDisplayed works incorrectly under FireFox browser in Windows machines

VisualForce , Spring 16

Last updated 2017-04-14 ·Reference W-3010230 ·Reported By 2 users

Fixed - Winter '17

Summary
With Firefox Browser in Windows machines that $User.UITheme and $User.UIThemeDisplayed are displaying incorrect Values and incorrect Look and Feel.

Its working as designed in all other browsers, in all Machines.

Repro
Create a Simple VF page, UIThemeCheck

<apex:page showHeader="true" sidebar="true">
<apex:outputPanel rendered="{!$User.UITheme == 'Theme3'}">Currently in Classic UI</apex:outputPanel><br/>
<apex:outputPanel rendered="{!$User.UITheme != 'Theme3'}">Currently in Lightning Experience UI</apex:outputPanel>
</apex:page>

1. In Classic Ui > Setup > VisualForce Pages
2. For the VF "UIThemeCheck" > From Action column > Click on the Preview pop up.
3. Observe that it opens page in Classic UI and Displays the text "Currently in Classic UI"
4. Now Switch to LX ui and follow the steps 2&3.
5. Observe that Text still shows "Currently in Classic UI" instead of "Currently in Lightning Experience UI"

Workaround
Use Other Browser.

Reported By (2)

Varun Chaddha Lily Yip

Is it Fixed?

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