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Facebook does not load properly. Instead of what is expected all I get is a series of gobbledygook...§êü0 éI«ÕCE¤hýð)"'­u¤.üùóï?ãîÓ²—Ûãõùýç›Ëÿþ|i^/˜•|æ4:

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Windows 8.1 OS, Facebook does not load the way it should. It loads perfectly on Internet Explorer. All other pages work as they should on Firefox. This is what loads on Firefox...§êü0 éI«ÕCE¤hýð)"'­?u¤.üùóï???ãî??Ó²?—Ûãõùýç›Ëÿþ|i^/˜•|æ4?:?h —á?+dK±?Ûr"ÉI\&“©Ö÷9áóÅ®•ld’Ý=žRHV²?œF],?IH$A3H¢Æ]µ—ëÞ¯;ÿ®õÿ}þ’ˆË›ªîÑ’Y©s«î??E™dr¸žfma?[™d??Õ?åõÿ? »“äÿŸª¥IB+¾ãvw¹»ª”?Žr(º‹šúÿÏŒ??Šg€ÚJÚ÷H?›ºHn ƒ?µ???p)&®CŒMZÇPT®Ê=WWÚݹ(½•ý/SË*E€Œ1©råJw?„ Ç™Pò™6HÄ÷wWõ???· ?r«@rKE®ÜÚ;ß=3lÂ̲?\Ðï?ïHÉgƆ>Im´J“]Ix¹’T¡‚4–ÿµ_Ÿ+gr‚ ¸°?_è­?ýª??1@Øð~????©­¸?•òl?:M*Q1ò;?¿ÿeßìî©%»–Š',Â,®HÂü~ÕÕ?„8 !¿©?³ÄÔäA4ù¡bT8¤äž& ‹?«ä—#ñ¿ß›%]—j¸Í? Ëō•Z6rñ?$/T½{ßùUú?&d… ½)NŠ÷Ýwÿo…Þœ&fIã?"¡?عËC ° 2|fm6p áB??Òc¸h.ê{¢"b³Ë÷Ç^É’qóOñ?š¡˜r£}?ÕaïS¼‰?è6“±¬‹v»ßs€"?8i«0œŽ«âE´„|·1?µ÷~je?(`·ê´&cVÛN¯T•VDœð„}?îµÎ•ú·A”¡G?o?ž1&ßóß^‚8²ò¨ð÷Ë;IWó[W??A¹¦áÍ2tEÔ»_ÃÚB?³?Hb?€Æéo\?&ÍŒ@(êE®8n­jº2o~¦~>¿£†JýÍGÐØ%?¼Î;šQDˆÐX@#1Ì#?R$Ž HÞ‚s‹:œrO¾#Jý4@ŸR¨í¬lL~ÄŽ¿ ÎJŽÒão6~??I…ØqúÁ?G샞?ê÷ézçû„¼úOñpøÐÞ]ŸŸÏxŸÝð?âÅQV\þêuvåøê¹_ÞÜ]8«ùÎÝ$²SQQ?íš?bj§Âµà?d +K™

Windows 8.1 OS, Facebook does not load the way it should. It loads perfectly on Internet Explorer. All other pages work as they should on Firefox. This is what loads on Firefox...§êü0 éI«ÕCE¤hýð)"'­u¤.üùóï?ãîÓ²—Ûãõùýç›Ëÿþ|i^/˜•|æ4:h —á+dK±Ûr"ÉI\&“©Ö÷9áóÅ®•ld’Ý=žRHV²œF],IH$A3H¢Æ]µ—ëÞ¯;ÿ®õÿ}þ’ˆË›ªîÑ’Y©s«îE™dr¸žfma[™dÕåõÿ? »“äÿŸª¥IB+¾ãvw¹»ª”Žr(º‹šúÿÏŒŠg€ÚJÚ÷H›ºHn ƒµp)&®CŒMZÇPT®Ê=WWÚݹ(½•ý/SË*E€Œ1©råJw„ Ç™Pò™6HÄ÷wWõ  · r«@rKE®ÜÚ;ß=3lÂ̲\ÐïïHÉgƆ>Im´J“]Ix¹’T¡‚4–ÿµ_Ÿ+gr‚ ¸°_è­ ýª1@Øð~©­¸•òl:M*Q1ò;¿ÿeßìî©%»–Š',Â,®HÂü~ÕÕ?„8 !¿©³ÄÔäA4ù¡bT8¤äž& ‹«ä—#ñ¿ß›%]—j¸Í Ëō•Z6rñ$/T½{ßùUú&d… ½)NŠ÷Ýwÿo…Þœ&fIã"¡عËC ° 2|fm6p áBÒc¸h.ê{¢"b³Ë÷Ç^É’qóOñš¡˜r£} ÕaïS¼‰è6“±¬‹v»ßs€"8i«0œŽ«âE´„|·1µ÷~je(`·ê´&cVÛN¯T•VDœð„}?îµÎ•ú·A”¡Gož1&ßóß^‚8²ò¨ð÷Ë;IWó[WA¹¦áÍ2tEÔ»_ÃÚB³Hb?€Æéo\&ÍŒ@(êE®8n­jº2o~¦~>¿£†JýÍGÐØ%¼Î;šQDˆÐX@#1Ì#R$Ž HÞ‚s‹:œrO¾#Jý4@ŸR¨í¬lL~ÄŽ¿ ÎJŽÒão6~I…ØqúÁ?G샞ê÷ézçû„¼úOñpøÐÞ]ŸŸÏxŸÝðâÅQV\þêuvåøê¹_ÞÜ]8«ùÎÝ$²SQQ?íš bj§Âµàd +K™

All Replies (3)

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Firefox 44+ accepts a new kind of encoding (compression) called Brotli (br) for secure connections. Facebook has enabled Brotli (br) encoding for files send via a secure connections. Some (security) software that intercepts a secure connection to scan the content doesn't know about this encoding and changes the content-type header to text/plain. A possible workaround is to modify the involved pref and remove the trailing ", br" to prevent the server from sending files with Brotli compression.

  • network.http.accept-encoding.secure = "gzip, deflate, br" => "gzip, deflate" (without quotes)

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

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You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Hold down the Shift key and left-click the Reload button
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Command + Shift + R" (Mac)

Clear the cache and remove the cookies from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Clear the cache":

  • Firefox/Options/Preferences -> Advanced -> Network -> Cached Web Content: "Clear Now"

"Remove the cookies" from websites that cause problems.

  • Firefox/Options/Preferences -> Privacy -> "Use custom settings for history" -> Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • Do NOT click the "Refresh Firefox" button on the Safe Mode start window
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Do you connect directly to Facebook, or through a filter? One starting point for investigation is to see whether you find an unexpected issuer for the site's SSL certificate.

While viewing a page on Facebook, you can call up the certificate viewer using either:

  • right-click (on Mac Ctrl+click) a blank area of the page and choose View Page Info > Security > "View Certificate"
  • (menu bar) Tools > Page Info > Security > "View Certificate"
  • click the padlock or "i" icon in the address bar, then the ">" button, then More Information, and finally the "View Certificate" button

Could you compared with "Issued by" and "Certificate Hierarchy" with the attached screenshot. Anything different on yours?