Did you try using sudo to open firefox? there is a problem and this is the workaround.
2013/11/20 Michael Joyner <[email protected]> > Eh... this just started happening to me, and I am unable to use dev mode. > :( > > Mozilla Firefox for Linux Mint 25.0.1 > > about:support shows: > > Google Web Toolkit Developer Plugin for Firefox 1.25 true > [email protected] > > Just did a "FireFox" reset and... no change in behavior > > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/google-web-toolkit. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
