827876 - When editing addons, an "IA__gtk_clipboard_set_with_data: assertion `targets != NULL' failed" occurs

Status: RESOLVED WORKSFORME

(Core :: Widget: Gtk, defect)

Description

[Alain Knaff]

User Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20100101 Firefox/17.0
Build ID: 20121130221702

Steps to reproduce:

Attempted to disable Download-helper (or any other) extension
1. Tools->Add-on
2. Click Extensions
3. On Download-helper, click disable


Actual results:

In the UI: Nothing
On stdout:
(firefox:13177): Gtk-CRITICAL **: IA__gtk_clipboard_set_with_data: assertion `targets != NULL' failed



Expected results:

Extension should have been disabled, and button should have turned into enable.

Comment 1

[Phoenix]

Can you check, is this reproducible in current nightly build from http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-central/firefox-21.0a1.en-US.linux-i686.tar.bz2? Just unpack it to separate dir and run from there

Comment 2

[Georg Fritzsche [:gfritzsche]]

Please note that extensions are not the same as plugins.

Comment 3

[Alain Knaff]

(In reply to Phoenix from comment #1)
> Can you check, is this reproducible in current nightly build from
> http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-
> central/firefox-21.0a1.en-US.linux-i686.tar.bz2? Just unpack it to separate
> dir and run from there

Same issue with that version...

Comment 4

[Phoenix]

(In reply to Alain Knaff from comment #3)
> Same issue with that version...
Okay, next step is to check if problem exists in clean profile - http://kb.mozillazine.org/Profile_Manager

Comment 5

[Alain Knaff]

Problem does not occur with "clean" profile

Comment 6

[Phoenix]

So, then possible problem sources are
1) Misbehaving extension or plugin. Run browser in Safe Mode, this would disable all extensions, then try to turn them on/off to find offending one.
2) Some settings interfere
3) Corrupted profile folder
In cases 2-3 best way to move your data to new profile and delete old one

Comment 7

[Alain Knaff]

(In reply to Phoenix from comment #6)
> So, then possible problem sources are
> 1) Misbehaving extension or plugin. Run browser in Safe Mode, this would
> disable all extensions, then try to turn them on/off to find offending one.

Tried that one, even with all extensions and plugins disabled, it still happens

> 2) Some settings interfere

Even with the prefs.js from the "clean" profile copied to the current one, it still happens

> 3) Corrupted profile folder

How chan I check for that?

> In cases 2-3 best way to move your data to new profile and delete old one

N.B. I now took the opposite approach, of copying what I need from my formerly current profile to the clean profile: extensions folder, *.sqlite, foxyproxy.xml, bookmarks.html, prefs.js, key3.db, and the (now no longer...) clean profile still works...

For analysis, I've still got the broken profile around, if you want me to test some more stuff.

Comment 8

[Phoenix]

(In reply to Alain Knaff from comment #7)
> For analysis, I've still got the broken profile around, if you want me to
> test some more stuff.
It is that somebody from developers look at that, but looking at similar Bug 632025 and Bug 781788 I wouldn't expect much response. If nobody would be interested in further investigation, I'll close this bug in a month as your problem is solved with new profile :)

Comment 9

[Alain Knaff]

Found it. This was due to a chrome/userContent.css where I had defined attributes for -moz-user-select instead of user-select.

It worked on earlier versions of Firefox which probably had user-select as a local CSS extension, but broke once this became "official" and the name with the -moz prefix got retired.

Still, a nicer message such as "unknown CSS attribute -moz-user-select" would have been helpful...