(1) The answer is yes
(2) The answer is no, then it works ok
(3) I have an almost clean testprofile. It works ok, also when I copy the prefs js to it.
(4) Turned batches of other extensions off, then on. Problem persists (list of extensions added)
(5) Curious thing is it even blocks sites initially I have explicitly added to the whitelist.
(Added) I didn't notice before: I have two independent profiles of FF running at the same time with the same extensions active. The other profile doesn't suffer from the problem. The tests above I did with the second instance closed.
Classic Compact opties 25.0 true
notreal.ccoptions@environmentalchemistry.com
CLEO 6.0 true
CLEO@guid.customsoftwareconsult.com
FEBE 8.0.5 true {4BBDD651-70CF-4821-84F8-2B918CF89CA3}
FlashGot 1.5.6.7 true {19503e42-ca3c-4c27-b1e2-9cdb2170ee34}
Geenstijl Extension 2.12.0.0 true {6efc2883-3ad7-493f-b3bf-42aef1ecb8f1}
Go Parent Folder 2.9.1 true goParentFolder@alice
IE View 1.5.6 true {6e84150a-d526-41f1-a480-a67d3fed910d}
KeeFox 1.4.4 true
keefox@chris.tomlinson
MozRepl 1.1.2 true
mozrepl@hyperstruct.net
NoScript 2.6.9.3 true {73a6fe31-595d-460b-a920-fcc0f8843232}
Restartless Restart 9 true
restartless.restart@erikvold.com
Right Encoding 0.3.4 true
rightencoding@oops.org
Show Parent Folder 2.1 true showParentFolder@alice
Skip Cert Error 0.4.3 true
skipcerterror@foudil.fr
Tab Mix Plus 0.4.1.5.2 true {dc572301-7619-498c-a57d-39143191b318}
Textarea Cache 0.9.3.2 true {578e7caa-210f-4967-a0d3-88fe5b59a39f}
TranslateMenu 1.51 true
transmenu@ahmeda.net
View Sidebar 12.1 true {f44a1992-64ff-4b96-acd6-35d65ab61cb3}
VLC Web Plugin 2.0.2 true
vlc-plugin@videolan.org
Online Safety 2.93.2123 false {004d4592-e742-47bd-b922-82616be4255c}
Save Images 1.0.7 false
LDSI_plashcor@gmail.com
Stylish 1.4.3 false {46551EC9-40F0-4e47-8E18-8E5CF550CFB8}