I installed the MarkdownPreview package in Sublime Text3 with no trouble. When I try to generate a preview of my markdown file in a browser following these instructions, the system opens my Signal messenger app, instead of a tab in the browser.

Any idea if this is an issue with my configuration? I'm running Ubuntu 18.04LTS.

1 Answer 1


I had the same problem. The root cause for me was that Signal was set to be the default application to open files with the .html extension. My fix was to locate a file with the .html extension in the File browser. Right-click and select "Properties." Select the "Open With" tab and select a more appropriate application (e.g., Firefox or Chrome). Hope this helps!

  • This worked perfect!
    – glicerico
    Oct 16, 2019 at 5:02

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