STEP 1: Open Thunar file browser >> Right-click a .url file >> Select: “Open With” >> “Open With Other Application” >> Select/Click on “Use a custom command”. A text entry field will appear.
STEP 2. Copy/paste the following custom command to the text entry field:
bash -c “cat %f | grep URL | cut -d’=’ -f2 | xargs firefox &”
STEP 3. Click the default checkbox, then press Open. Your URL will now open in Firefox.
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