Firefox Sync and Zscaler Firewall/Proxy not working











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Our network has been recently upgraded with the zscaler proxy solution. I was able to regain internet access by following this question: Firefox: This connection is untrusted + Behind corporate firewall



Unfortunately, that did not work out for Firefox Sync.



I'm able to log-in (verified by getting a mail from Firefox Accounts) but Firefox isn't still able to sync.



I suspect that is somehow related to the certification signing process what is properly blocked by zscaler:



1443703953083 FirefoxAccounts ERROR error POSTing /certificate/sign: {"code":401,"errno":109,"error":"Unauthorized","message":"Missing authentication","info":"https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#response-format"}










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    up vote
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    down vote

    favorite
    1












    Our network has been recently upgraded with the zscaler proxy solution. I was able to regain internet access by following this question: Firefox: This connection is untrusted + Behind corporate firewall



    Unfortunately, that did not work out for Firefox Sync.



    I'm able to log-in (verified by getting a mail from Firefox Accounts) but Firefox isn't still able to sync.



    I suspect that is somehow related to the certification signing process what is properly blocked by zscaler:



    1443703953083 FirefoxAccounts ERROR error POSTing /certificate/sign: {"code":401,"errno":109,"error":"Unauthorized","message":"Missing authentication","info":"https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#response-format"}










    share|improve this question


























      up vote
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      down vote

      favorite
      1









      up vote
      1
      down vote

      favorite
      1






      1





      Our network has been recently upgraded with the zscaler proxy solution. I was able to regain internet access by following this question: Firefox: This connection is untrusted + Behind corporate firewall



      Unfortunately, that did not work out for Firefox Sync.



      I'm able to log-in (verified by getting a mail from Firefox Accounts) but Firefox isn't still able to sync.



      I suspect that is somehow related to the certification signing process what is properly blocked by zscaler:



      1443703953083 FirefoxAccounts ERROR error POSTing /certificate/sign: {"code":401,"errno":109,"error":"Unauthorized","message":"Missing authentication","info":"https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#response-format"}










      share|improve this question















      Our network has been recently upgraded with the zscaler proxy solution. I was able to regain internet access by following this question: Firefox: This connection is untrusted + Behind corporate firewall



      Unfortunately, that did not work out for Firefox Sync.



      I'm able to log-in (verified by getting a mail from Firefox Accounts) but Firefox isn't still able to sync.



      I suspect that is somehow related to the certification signing process what is properly blocked by zscaler:



      1443703953083 FirefoxAccounts ERROR error POSTing /certificate/sign: {"code":401,"errno":109,"error":"Unauthorized","message":"Missing authentication","info":"https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#response-format"}







      firefox proxy sync firewall






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      edited Jan 30 at 19:01









      Kevin Panko

      5,809113648




      5,809113648










      asked Oct 1 '15 at 13:25









      Stefan

      29111




      29111






















          2 Answers
          2






          active

          oldest

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          up vote
          1
          down vote













          Bypass the proxy for *.services.mozilla.com; I believe Firefox browser pins the cert for Sync.



          If using PAC, use a line like:



          shExpMatch(host, "*.services.mozilla.com")


          If using PBR, WCCP or a Tunnel, bypass it at that edge device.






          share|improve this answer























          • can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
            – Stefan
            Apr 26 '16 at 16:17










          • can you provide some details?
            – Stefan
            Jun 6 '16 at 8:13


















          up vote
          0
          down vote













          It is not the perfect answer but there is a ticket on Bugzilla what has gone in some more details recently what I cannot cover here in a compressive and satisfying answer.
          I hope the reference to Bugzilla may help others to find a solution.
          All that I can say that as from Firefox V54 sync works may even as from V53 but I cannot tell the reason.






          share|improve this answer





















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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            1
            down vote













            Bypass the proxy for *.services.mozilla.com; I believe Firefox browser pins the cert for Sync.



            If using PAC, use a line like:



            shExpMatch(host, "*.services.mozilla.com")


            If using PBR, WCCP or a Tunnel, bypass it at that edge device.






            share|improve this answer























            • can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
              – Stefan
              Apr 26 '16 at 16:17










            • can you provide some details?
              – Stefan
              Jun 6 '16 at 8:13















            up vote
            1
            down vote













            Bypass the proxy for *.services.mozilla.com; I believe Firefox browser pins the cert for Sync.



            If using PAC, use a line like:



            shExpMatch(host, "*.services.mozilla.com")


            If using PBR, WCCP or a Tunnel, bypass it at that edge device.






            share|improve this answer























            • can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
              – Stefan
              Apr 26 '16 at 16:17










            • can you provide some details?
              – Stefan
              Jun 6 '16 at 8:13













            up vote
            1
            down vote










            up vote
            1
            down vote









            Bypass the proxy for *.services.mozilla.com; I believe Firefox browser pins the cert for Sync.



            If using PAC, use a line like:



            shExpMatch(host, "*.services.mozilla.com")


            If using PBR, WCCP or a Tunnel, bypass it at that edge device.






            share|improve this answer














            Bypass the proxy for *.services.mozilla.com; I believe Firefox browser pins the cert for Sync.



            If using PAC, use a line like:



            shExpMatch(host, "*.services.mozilla.com")


            If using PBR, WCCP or a Tunnel, bypass it at that edge device.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Apr 20 '16 at 22:17









            techraf

            3,975111729




            3,975111729










            answered Apr 20 '16 at 20:46









            BrianV

            111




            111












            • can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
              – Stefan
              Apr 26 '16 at 16:17










            • can you provide some details?
              – Stefan
              Jun 6 '16 at 8:13


















            • can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
              – Stefan
              Apr 26 '16 at 16:17










            • can you provide some details?
              – Stefan
              Jun 6 '16 at 8:13
















            can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
            – Stefan
            Apr 26 '16 at 16:17




            can provide some more details, I reckon you mean: PAC = proxy auto-config file PBR = Policy Based Routing WCCP = Web Cache Communication Protocol It seams I can download the PAC file although I cannot read the entire url in LAN Settings of Win 7 and haven't found a command for cmd to do so yet. Do you want me to edit the PAC save it locally and point firefox to it? Beware I'm not system or it admin.
            – Stefan
            Apr 26 '16 at 16:17












            can you provide some details?
            – Stefan
            Jun 6 '16 at 8:13




            can you provide some details?
            – Stefan
            Jun 6 '16 at 8:13












            up vote
            0
            down vote













            It is not the perfect answer but there is a ticket on Bugzilla what has gone in some more details recently what I cannot cover here in a compressive and satisfying answer.
            I hope the reference to Bugzilla may help others to find a solution.
            All that I can say that as from Firefox V54 sync works may even as from V53 but I cannot tell the reason.






            share|improve this answer

























              up vote
              0
              down vote













              It is not the perfect answer but there is a ticket on Bugzilla what has gone in some more details recently what I cannot cover here in a compressive and satisfying answer.
              I hope the reference to Bugzilla may help others to find a solution.
              All that I can say that as from Firefox V54 sync works may even as from V53 but I cannot tell the reason.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                It is not the perfect answer but there is a ticket on Bugzilla what has gone in some more details recently what I cannot cover here in a compressive and satisfying answer.
                I hope the reference to Bugzilla may help others to find a solution.
                All that I can say that as from Firefox V54 sync works may even as from V53 but I cannot tell the reason.






                share|improve this answer












                It is not the perfect answer but there is a ticket on Bugzilla what has gone in some more details recently what I cannot cover here in a compressive and satisfying answer.
                I hope the reference to Bugzilla may help others to find a solution.
                All that I can say that as from Firefox V54 sync works may even as from V53 but I cannot tell the reason.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 5 at 12:51









                Stefan

                29111




                29111






























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