Can't open links from Intellij: "Error KIO Client: Unable to create io-slave. Can not create socket for launching io-slave for protocol 'https'."

Since I switched to the snap version (--classic) of Intellij I can't open any external link (to web sites) from this app. Whenever I click a link I receive the following error:

Error - KIO Client

Unable to create io-slave. Can not create socket for launching io-slave for protocol 'https'.

Versions:

• Ubuntu 18.04.1 LTS
• KDE Frameworks 5.44.0
• Qt 5.9.5 (built against 5.9.5)
• snap 2.37.1.1+18.04
• snapd 2.37.1.1+18.04
• series 16
• Ubuntu 18.04
• Kernel 4.15.0-45-generic

Solution 1:

I'm not familiar with "KIO Client" and what it is.

But for myself, I needed to force the default Web Browser in KDE. Specifically I followed these steps.

1. Open System Settings
2. Under the Personalization section in the left menu, choose Applications then Default Applications.
3. In the list of Default Applications, choose Web Browser
4. From the Default Component section select In the Following Application and choose your preferred browser from the list.
5. Click the Apply button.

For myself, my default component for the web browser was set to In an Application Based on the Contents of the URL -- which seems ideal, but then it doesn't see to resolve HTTPS to any application. I suspect changing this may have other unintended side effects.