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When opening PDFs with spaces in the filename, firefox attempts to open each space delimited portion of the file name in a separate tab. The pdf can't be viewed

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When viewing a PDF with spaces in the file name, such as "Week 1 day 2.pdf", Firefox attempts to load each space delimited portion in a separate tab. The file mentioned previously is thus separated so that the first tab is addressed to "file:///C:/Users/eugen/AppData/Local/Temp/Week", the second is addressed to "http://0.0.0.1/", what "1" automatically changes to when entered into the address bar, the third is addressed to http://www.day.com/, and the fourth to "http://www.2-2.pdf/". None of which load anything.

When viewing a PDF with spaces in the file name, such as "Week 1 day 2.pdf", Firefox attempts to load each space delimited portion in a separate tab. The file mentioned previously is thus separated so that the first tab is addressed to "file:///C:/Users/eugen/AppData/Local/Temp/Week", the second is addressed to "http://0.0.0.1/", what "1" automatically changes to when entered into the address bar, the third is addressed to http://www.day.com/, and the fourth to "http://www.2-2.pdf/". None of which load anything.
Attached screenshots

All Replies (2)

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How are you opening this file ?

Does this also happen if you drag the file in a Firefox window or use "File -> Open File" ?

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I've been opening through a link (in this case posted by my professor online). If I download and use either of the two other methods you mentioned it works just fine.