7 March 2009

button text disappearing in firefox

Filed under: useful — bookweevil @ 12:24 am

If you fiddle around with some firefox settings while developing extensions, this can result in HTML buttons no longer having any text in them.

In Stu’s post here, “No button text in Firefox”, he suggests you ensure that the following lines are uncommented in prefs.js in your profile [or you could set the options to false using about:config]:

user_pref("nglayout.debug.disable_xul_cache", true);
user_pref("nglayout.debug.disable_xul_fastload", true)
user_pref("nglayout.debug.enable_xbl_forms", true)

Experimentation reveals it’s the third one, .enable_xbl_forms, which causes the problem – but I’m not sure how it got set. (An article at the mozilla developer centre, “Setting up extension development environment“, recommends enabling the first of these, but not the others.) It’s possible some developer add-on enabled it, or that I just clicked on it accidentally in about:config.


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