This thread was archived. Please ask a new question if you need help. can not open pdf files 1 reply 2 have this problem 1 view Last reply by FredMcD 8 years ago muffin54 25/1/16, 11:17 AM more options Quote help me open my pdf files help me open my pdf files Chosen solution https://support.mozilla.org/en-US/kb/disable-built-pdf-viewer-and-use-another-viewer Read this answer in context 👍 0 All Replies (1) FredMcD 25/1/16, 11:52 AM more options Quote Chosen Solution https://support.mozilla.org/en-US/kb/disable-built-pdf-viewer-and-use-another-viewer https://support.mozilla.org/en-US/kb/disable-built-pdf-viewer-and-use-another-viewer