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Q&A How to resolve an abstracted internal URI in Firefox?

153.0a1-20260606213347 occasionally provides a method to accomplish this, although it may not be deliberate: #!/usr/bin/env pwsh Start-Process firefox-nightly -ArgumentList '-jsdebugger', '--...

posted 3mo ago by Mr. Beedell, Roke Julian Lockhart (RJLB)‭ · edited 3mo ago by Mr. Beedell, Roke Julian Lockhart (RJLB)‭

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#2: Post edited by

Mr. Beedell, Roke Julian Lockhart (RJLB)‭ · 2026-06-08T18:47:44Z (3 months ago)

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`153.0a1-20260606213347` occasionally provides a method to accomplish this, although it may not be deliberate:
1. ~~~pwsh
#!/usr/bin/env pwsh
Start-Process firefox-nightly -ArgumentList '-jsdebugger', '--new-window', 'view-source:about:neterror?e=nssFailure2&u=https%3A//download.fedoraproject.org/pub/fedora/linux/releases/44/KDE/x86_64/iso/Fedora-KDE-Desktop-Live-44-1.7.x86_64.iso&c=UTF-8&d=%20&a='
$Header = '/usr/include/linux/input-event-codes.h'
$Control = awk '$1=="#define" && $2=="KEY_LEFTCTRL" {print $3}' $Header
$Alt = awk '$1=="#define" && $2=="KEY_LEFTALT" {print $3}' $Header
$Shift = awk '$1=="#define" && $2=="KEY_LEFTSHIFT" {print $3}' $Header
$I = awk '$1=="#define" && $2=="KEY_I" {print $3}' $Header
ydotool key `
"$($Control):1" `
"$($Alt):1" `
"$($Shift):1" `
"$($I):1" `
"$($I):0" `
"$($Shift):0" `
"$($Alt):0" `
"$($Control):0"
~~~
1. ~~~JS
#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/devtools/content/framework/toolbox.xhtml
document.querySelector('#command-button-pick').click();
~~~
1. ~~~JS
#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/browser/content/browser/browser.xhtml
document.querySelector('tab.tabbrowser-tab:nth-child(1) > stack:nth-child(1) > hbox:nth-child(2) > vbox:nth-child(3) > label:nth-child(1)').click();
~~~
To summarise, inspect the chrome of the relevant error tab's label.

`153.0a1-20260606213347` occasionally provides a method to accomplish this, although it may not be deliberate:
1. ~~~pwsh
#!/usr/bin/env pwsh
Start-Process firefox-nightly -ArgumentList '-jsdebugger', '--new-window', 'view-source:about:neterror?e=nssFailure2&u=https%3A//download.fedoraproject.org/pub/fedora/linux/releases/44/KDE/x86_64/iso/Fedora-KDE-Desktop-Live-44-1.7.x86_64.iso&c=UTF-8&d=%20&a='
$Header = '/usr/include/linux/input-event-codes.h'
$Control = awk '$1=="#define" && $2=="KEY_LEFTCTRL" {print $3}' $Header
$Alt = awk '$1=="#define" && $2=="KEY_LEFTALT" {print $3}' $Header
$Shift = awk '$1=="#define" && $2=="KEY_LEFTSHIFT" {print $3}' $Header
$I = awk '$1=="#define" && $2=="KEY_I" {print $3}' $Header
ydotool key `
"$($Control):1" `
"$($Alt):1" `
"$($Shift):1" `
"$($I):1" `
"$($I):0" `
"$($Shift):0" `
"$($Alt):0" `
"$($Control):0"
~~~
[^1]
[^1]: [`discussion.fedoraproject.org/t/193346`](https://discussion.fedoraproject.org/t/the-isos-are-inaccessible/193346)
1. ~~~JS
#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/devtools/content/framework/toolbox.xhtml
document.querySelector('#command-button-pick').click();
~~~
1. ~~~JS
#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/browser/content/browser/browser.xhtml
document.querySelector('tab.tabbrowser-tab:nth-child(1) > stack:nth-child(1) > hbox:nth-child(2) > vbox:nth-child(3) > label:nth-child(1)').click();
~~~
To summarise, inspect the chrome of the relevant error tab's label.

#1: Initial revision by

Mr. Beedell, Roke Julian Lockhart (RJLB)‭ · 2026-06-08T18:47:14Z (3 months ago)

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`153.0a1-20260606213347` occasionally provides a method to accomplish this, although it may not be deliberate:

1.	~~~pwsh
	#!/usr/bin/env pwsh
	Start-Process firefox-nightly -ArgumentList '-jsdebugger', '--new-window', 'view-source:about:neterror?e=nssFailure2&u=https%3A//download.fedoraproject.org/pub/fedora/linux/releases/44/KDE/x86_64/iso/Fedora-KDE-Desktop-Live-44-1.7.x86_64.iso&c=UTF-8&d=%20&a='
	$Header = '/usr/include/linux/input-event-codes.h'
	$Control = awk '$1=="#define" && $2=="KEY_LEFTCTRL" {print $3}' $Header
	$Alt = awk '$1=="#define" && $2=="KEY_LEFTALT" {print $3}' $Header
	$Shift = awk '$1=="#define" && $2=="KEY_LEFTSHIFT" {print $3}' $Header
	$I = awk '$1=="#define" && $2=="KEY_I" {print $3}' $Header
	ydotool key `
		"$($Control):1" `
		"$($Alt):1" `
		"$($Shift):1" `
		"$($I):1" `
		"$($I):0" `
		"$($Shift):0" `
		"$($Alt):0" `
		"$($Control):0"
	~~~

1.	~~~JS
	#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/devtools/content/framework/toolbox.xhtml
	document.querySelector('#command-button-pick').click();
	~~~

1.	~~~JS
	#!/usr/lib/firefox-nightly/browser/omni.ja!/chrome/browser/content/browser/browser.xhtml
	document.querySelector('tab.tabbrowser-tab:nth-child(1) > stack:nth-child(1) > hbox:nth-child(2) > vbox:nth-child(3) > label:nth-child(1)').click();
	~~~

To summarise, inspect the chrome of the relevant error tab's label.

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