New Windows from chrome:// are Blocked by the Popup Blocker



UI Design
13 years ago
5 years ago


(Reporter: Timothy P. Wolfe, Unassigned)


(Blocks: 1 bug)

Firefox Tracking Flags

(Not tracked)



(1 attachment)

258 bytes, application/vnd.mozilla.xul+xml


13 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040707 Firefox/0.9.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040707 Firefox/0.9.2

When an extension is set up to open up in a tab, most of the options in that
extension's context menu no longer work.  Sidebar and floating window options,
however, are unaffected - All of the context menu options will work there.

On further inspection, I have noticed that the options that do not work are also
the ones that open up a new window, as the icon for the popup blocker shows up
when the extension tries to open a new window from those particular context menu
options (with the name of the extension's "chrome:" page in the list).

Reproducible: Always
Steps to Reproduce:
1. Install an extension that has a custom context menu (with at least one option
in that menu that will open up a new window), and can also be opened in a tab.
2. Set up the extension so that it can be opened up in a tab.
3. Open the extension in a tab.
4. Right-click in the window for that tab to bring up the context menu for that
5. Click on an option in the context menu that will create a new window.
Actual Results:  
The new window opened from the extension did not appear, and the "Blocked
Popups" icon showed up in the status bar.  The extension's "chrome:" page is in
the list of blocked popups.

Expected Results:  
The new window opened from the extension should come up normally, without being

Not all extensions seem to suffer from this problem - Of the ones I have
installed, however, QuickNote is the only one I've spotted it in so far (though
other extensions may be affected as well).

I originally thought this was a problem with QuickNote, but after posting a bug
report at MozDev [], I was told
that this is a problem with Firefox (and recently, I have noticed that Mozilla
is also affected by this - I was using Mozilla 1.7.1 at the time of testing).  I
got the same results regardless of whether I was using my current profile, or a
brand new profile.

The "Expected Result" can be produced if the blocked "chrome:" page is added to
the list of sites allowed to open popup windows - But why are "chrome:" pages
allowed to be blocked in the first place?

Comment 1

13 years ago
Actually, a Browser bug. See also bug 204328 (this one is not a dupe, IMO).

Comment 2

13 years ago
Changing to "browser" as it affects Mozilla Suite as well.
Updating Summary to better reflect the problem.
Component: General → Browser-General
OS: Windows 2000 → All
Product: Firefox → Browser
Hardware: PC → All
Summary: New Windows from Some Extensions are Blocked by the Popup Blocker → New Windows from chrome:// are Blocked by the Popup Blocker
Target Milestone: --- → mozilla1.8beta
Version: unspecified → Trunk
Product: Browser → Seamonkey

Comment 3

13 years ago
Created attachment 170920 [details]
Testcase (tested under ff1.0


13 years ago
Assignee: firefox → general
Blocks: 176958
Ever confirmed: true
QA Contact: general → general
Target Milestone: mozilla1.8beta → ---


12 years ago
Assignee: general → guifeatures
Component: General → XP Apps: GUI Features
QA Contact: general
Filter "spam" on "guifeatures-nobody-20080610".
Assignee: guifeatures → nobody
QA Contact: guifeatures


9 years ago
Component: XP Apps: GUI Features → UI Design
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