Hi list, my system is Debian 8 Jessie (stable) with XFCE Desktop Environment and just a few days back my Iceweasel browser transformed to Firefox. After that my keyboard shortcut for launching Firefox isn't working if Firefox isn't running! In other words: if a Firefox Window is open then I can launch other (new) Firefox windows with my shortcut but if no Firefox windows are open the none starts.
From: XFCE Menu >> Keyboard >> Application Shortcuts I found the exact command which was "exo-open --launch WebBrowser" so I tried that on a console and got this error: ------8><------------paste-starts-here-----------8><------------- dalios@debian-8:~$ exo-open --launch WebBrowser dalios@debian-8:~$ 1466093150530 addons.xpi WARN Exception running bootstrap method startup on {fe272bd1-5f76-4ea4-8501-a05d35d823fc}: ReferenceError: invalid assignment left-hand side (resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///home/dalios/.mozilla/firefox/5k17vuc8.default/extensions/%7Bfe272bd1-5f76-4ea4-8501-a05d35d823fc%7D.xpi!/bootstrap.js -> jar:file:///home/dalios/.mozilla/firefox/5k17vuc8.default/extensions/%7Bfe272bd1-5f76-4ea4-8501-a05d35d823fc%7D.xpi!/lib/ui.js:407:5) JS Stack trace: requ...@bootstrap.js:141:4 < @main.js:19:1 < requ...@bootstrap.js:141:4 < star...@bootstrap.js:28:2 < this.xpiprovider.callbootstrapmet...@xpiprovider.jsm:4656:9 < this.xpiprovider.star...@xpiprovider.jsm:2727:13 < callprovi...@addonmanager.jsm:227:12 < _startprovi...@addonmanager.jsm:833:5 < addonmanagerinternal.star...@addonmanager.jsm:1016:9 < this.addonmanagerprivate.star...@addonmanager.jsm:2782:5 < ammanager.prototype.obse...@addonmanager.js:58:7 ------><8------------paste-ends-here-----------><8------------- If I try the command "firefox" (or "iceweasel") then a similar error is produced but at least Firefox is launched. ------8><------------paste-starts-here-----------8><------------- dalios@debian-8:~$ firefox 1466095187537 addons.xpi WARN Exception running bootstrap method startup on {fe272bd1-5f76-4ea4-8501-a05d35d823fc}: ReferenceError: invalid assignment left-hand side (resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///home/dalios/.mozilla/firefox/5k17vuc8.default/extensions/%7Bfe272bd1-5f76-4ea4-8501-a05d35d823fc%7D.xpi!/bootstrap.js -> jar:file:///home/dalios/.mozilla/firefox/5k17vuc8.default/extensions/%7Bfe272bd1-5f76-4ea4-8501-a05d35d823fc%7D.xpi!/lib/ui.js:407:5) JS Stack trace: requ...@bootstrap.js:141:4 < @main.js:19:1 < requ...@bootstrap.js:141:4 < star...@bootstrap.js:28:2 < this.xpiprovider.callbootstrapmet...@xpiprovider.jsm:4656:9 < this.xpiprovider.star...@xpiprovider.jsm:2727:13 < callprovi...@addonmanager.jsm:227:12 < _startprovi...@addonmanager.jsm:833:5 < addonmanagerinternal.star...@addonmanager.jsm:1016:9 < this.addonmanagerprivate.star...@addonmanager.jsm:2782:5 < ammanager.prototype.obse...@addonmanager.js:58:7 ------><8------------paste-ends-here-----------><8------------- A similar problem is that when I click on a link on a document or an application (for example Icedove, yes that is still Icedove and not Thunderbird) then nothing happens unless firefox is already running. I searched the web with the above errors (and parts of them) but didn't come up with anything useful. Any ideas? Thanks in advance, Dalios