Closed Bug 1195128 Opened 9 years ago Closed 9 years ago

DOM Inspector 2.0.16

Categories

(Other Applications :: DOM Inspector, defect)

defect
Not set
normal

Tracking

(Not tracked)

RESOLVED DUPLICATE of bug 1078121

People

(Reporter: cbaker, Unassigned)

Details

(Keywords: helpwanted)

DOM Inspector does not load/work in Fx 42.0a2 (2015-08-16).

Tools > Web Developer > DOM Inspector generates message in browser console:

TypeError: content is null browser.xul:1:1

Tried with a new, otherwise empty profile. Same results.
OS: Unspecified → Windows 7
Hardware: Unspecified → x86_64
This is due to the multiprocess changes in Firefox that are enabled by default in 42.  No one is working on DOM Inspector as far as I know, so the only way to fix this is to turn off multiprocess mode from the preferences and then restart.
Status: UNCONFIRMED → NEW
Ever confirmed: true
OS: Windows 7 → All
Hardware: x86_64 → All
Version: 2.0 → unspecified
(In reply to Colby Russell :crussell (no longer Mozilla-ing) from comment #1)
> This is due to the multiprocess changes in Firefox that are enabled by
> default in 42.  No one is working on DOM Inspector as far as I know, so the
> only way to fix this is to turn off multiprocess mode from the preferences
> and then restart.
Any hints on how to fix this?
Flags: needinfo?(Sevenspade)
No idea.  I had stopped focusing on Mozilla-related projects almost entirely even by the time I had written that comment.
Flags: needinfo?(Sevenspade)
In Multiprocess Firefox the content is running in another process.

From: http://mxr.mozilla.org/comm-central/source/mozilla/devtools/server/actors/inspector.js?rev=cc2af13f040c#187

// When the user selects a node to inspect in e10s, the parent process
// has a CPOW that wraps the node being inspected.  It uses the
// message manager to send this node to the child, which stores the
// node in gInspectingNode. Then a findInspectingNode request is sent
// over the remote debugging protocol, and gInspectingNode is returned
// to the parent as a NodeFront.

Since this functionality is expected to be present in Firefox we could piggyback on the remote debugging protocol.
Keywords: helpwanted
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → DUPLICATE
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