I want to programatically access the open tabs #document object by the Browser Console. I am in chrome://browser/content/browser.xhtml I fallow the docs in browser console: https://firefox-source-docs.mozilla.org/devtools-user/browser_console/index.html

Following the code: var newTabBrowser = gBrowser.getBrowserForTab(gBrowser.selectedTab); newTabBrowser.addEventListener("load", function() {

this page has been eaten

}, true); newTabBrowser.contentDocument.location.href = "https://mozilla.org/";

.contentDocument is null except if current tab is a page such as page about:config

Is there a way to allow chrome:// tab to access read only of the tabs #documents property using the console?

I understand that accessing it with javascript from the browser console would be a security issue. I want to bypass it to read, analize and compare dynamic data from the open tabs.

My configuration is the following: Windows 11, internal display connected to iGPU and external UHD display to nvidia-HDMI port, multiple firefox windows are opened (1 one the internal screen, 2 on the external).

Then in Windows->Settings->GPU I can select firefox to run on either iGPU (powersaving) or on Nvidia GPU (max perf), the problem is the following: Whenever I set firefox running on iGPU, there would be a massive stuttering/framedrop on an external display (connected to NVIDIA), while a perfectly smooth browsing on internal display, and vice versa.

My first attempt was to disable webrenderer compositor or switching it to a software rendering, which fixes the heavy stuttering, but the scrolling becomes overall less fluid/responsive.

However, setting "layers.gpu-process.enabled" to "false" seemingly solves this problem completely. Now I have a perfectly smooth scrolling on both displays, regardless of which GPU is used in Windows->Settings->GPU (nvidia's is arguably a little but more responsive).

Hope this helps someone, or maybe dev team could look deeper into this.

Thank you for the great browser!

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