Hello,
To change the default reader for viewing PDF files in Firefox, follow these steps:
- Click the menu button
and click Settings.
- In the General panel, go down to the Applications section.
- In the Search field, type PDF to find the Portable Document Format (PDF) entry.
- Use the drop-down menu for that entry under the Action column, to select your favorite PDF reader.
- To view PDF files in Firefox, choose Open in Firefox.
For more information, see View PDF files in Firefox or choose another viewer.
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