How do i designate a default CAD program?
Until today, my default CAD program for opening *.DWG files was EZCad. Now it has changed and I did not make the change. I cannot select the option in the window as it is grayed out
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Does this still work properly if you double-click a .DWG file in Windows File Explorer?
You can rename/remove handlers.json and delete mimeTypes.rdf if present in the Firefox profile folder with Firefox closed to reset all file actions.
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Directory:
Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder - http://kb.mozillazine.org/Profile_folder_-_Firefox
hOW DO I DESIGNATE A DEFAULT APP FOR OPENING CAD (DRG) FILES?
You can right-click a specific file in Windows File Explorer and use "Open with" to select a specific application. This dialog should have a checkbox to always use this application. You may have to hold the Shift key when you right-click if you do not see "Open with..." in the context menu.