This is a bit roundabout, but you *can* delete specific entries from your cert DB. This involves messing around with the command line a bit, and is far more involved than it should be. That said, the following worked for me.
Close Epiphany, then open ~/.gnome2/epiphany/mozilla/epiphany/cert_override.txt in a text editor, and you should see something like the following:
---
# PSM Certificate Override Settings file
# This is a generated file! Do not edit.
bugs.freedesktop.org:443 OID.2.16.840.1.101.3.4.2.1 58:43:9C:2D:39:61:1C:53:67:1D:A0:DB:08:06:C4:36:74:A2:7E:34:B5:08:51:9E:ED:73:CB:D7:D5:2C:89:AD U AAAAAAAAAAAAAAADAAAAewYRmTB5MRAwDgYDVQQKEwdSb290IENBMR4wHAYDVQQL ExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNBIENlcnQgU2lnbmlu ZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2FjZXJ0Lm9yZw==
---
(Everything from "bugs.freedesktop.org" to the last "==" is one very long line.) Delete the line(s) corresponding to the certificate(s) you want to delete, and restart Epiphany. The certificate exception should be revoked, and you should see the same warning when you go to the relevant page that you did before you added the exception.
Please let me know if if this does or does not work for you.
This is a bit roundabout, but you *can* delete specific entries from your cert DB. This involves messing around with the command line a bit, and is far more involved than it should be. That said, the following worked for me.
Close Epiphany, then open ~/.gnome2/ epiphany/ mozilla/ epiphany/ cert_override. txt in a text editor, and you should see something like the following:
--- p.org:443 OID.2.16. 840.1.101. 3.4.2.1 58:43:9C: 2D:39:61: 1C:53:67: 1D:A0:DB: 08:06:C4: 36:74:A2: 7E:34:B5: 08:51:9E: ED:73:CB: D7:D5:2C: 89:AD U AAAAAAAAAAAAAAA DAAAAewYRmTB5MR AwDgYDVQQKEwdSb 290IENBMR4wHAYD VQQL ExVodHRwOi8vd3d 3LmNhY2VydC5vcm cxIjAgBgNVBAMTG UNBIENlcnQgU2ln bmlu ZyBBdXRob3JpdHk xITAfBgkqhkiG9w 0BCQEWEnN1cHBvc nRAY2FjZXJ0Lm9y Zw==
# PSM Certificate Override Settings file
# This is a generated file! Do not edit.
bugs.freedeskto
---
(Everything from "bugs.freedeskt op.org" to the last "==" is one very long line.) Delete the line(s) corresponding to the certificate(s) you want to delete, and restart Epiphany. The certificate exception should be revoked, and you should see the same warning when you go to the relevant page that you did before you added the exception.
Please let me know if if this does or does not work for you.