Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

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Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.
Argivearre

How do I get Firefox to always show the table of contents for PDF files?

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EricMc

Every time I view a PDF file in Firefox, I first have to click the button that enables the sidebar and then switch to the table of contents. I wish I could get Firefox to remember that, so that it shows by default when I open a PDF. Is there a setting for this?

Every time I view a PDF file in Firefox, I first have to click the button that enables the sidebar and then switch to the table of contents. I wish I could get Firefox to remember that, so that it shows by default when I open a PDF. Is there a setting for this?

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Unfortunately, I am unaware of any way to change this at the moment. Does Adobe Reader automatically open with a table of contents displayed? If so, you can just decide not to use Firefox's built-in PDF viewer:

Type about:config in the Awesome Bar. Change preference name pdfjs.disabled to true. Make sure Adobe Reader is configured to launch for web PDFs and you'll be in good shape.