Info and fix here.
The newest versions (as of today) should have the issue fixed.
Edit:
To check if the fix is installed, type
about:config
in the location bar; the following line should be added to the preferences:
network.protocol-handler.external.shell default boolean false
(this is for Firefox and Mozilla, not sure about Thunderbird)
The newest versions (as of today) should have the issue fixed.
Edit:
To check if the fix is installed, type
about:config
in the location bar; the following line should be added to the preferences:
network.protocol-handler.external.shell default boolean false
(this is for Firefox and Mozilla, not sure about Thunderbird)