1556834 - DDE requests are not working with Firefox 67

Status: RESOLVED INVALID

(Toolkit :: Startup and Profile System, defect)

Description

[Andreas]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

Steps to reproduce:

I use the command the line tool cmcdde.exe to pass a dde request to firefox to open local html files or web adresses. This worked well up to Firefox 66.0.5. With Firefox 67 the dde communication is not established.

1.) Download and unzip cmcdde:
http://www.istri.fr/spip/zip/CMCDDE.zip

2.) Using a command window (cmd.exe) on windows 10 gives the following error:
D:\Temp\CE>CMCDDE.EXE firefox WWW_OpenURL http://www.heise.de
Error: Could not initiate a DDE conversation.
App name: firefox
Topic name: WWW_OpenURL

3.) Download and install Firefox 60.7.0esr

4.) Using a command window (cmd.exe) on windows 10 works as expected and as worked in Firefox prior to version 67:
D:\Temp\CE>CMCDDE.EXE firefox WWW_OpenURL http://www.heise.de
Result: In the opened Firefox 60.7.0esr browser I have a new tab with URL http://www.heise.de loaded.

Actual results:

Firefox 67 does not respond to a dde request as did the versions before. Either DDE is kicked out in Firefox 67 or the way to handle DDE requests was changed in Firefox 67.

Expected results:

Firefox 67 should have opened a new tab with the provided URL by using the command:
CMCDDE.EXE firefox WWW_OpenURL http://www.heise.de

Comment 1

[Dave Townsend [:mossop]]

DDE support was removed in bug 513742.

Comment 2

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

Note, Firefox itself has command line options for -new-tab, -new-window, and -url, so you can probably accomplish what you want without using DDE.

Something like firefox.exe -new-tab "C:\Users\kwier\Desktop\full.txt" -P default works for me, assuming my Firefox is using the profile named "default".