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"Website will not allow Firefox to display the page if another site has embedded it"-- but even a new window wont load?

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  • 0 have this problem
  • 3 views
  • Last reply by z. ixa

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hi, i see this often: "Website will not allow Firefox to display the page if another site has embedded it".

{see attached}
but even when i click on open site in new window, the new window wont load. just a blank with spinning circle forever {see attached}

this usually happens when i click on a trusted site's "help" tab or button. this is a new problem that just started a week or so ago. {eg, gmail and youtube} please, how can i set it so i can see these view?

hi, i see this often: "Website will not allow Firefox to display the page if another site has embedded it". {see attached} but even when i click on open site in new window, the new window wont load. just a blank with spinning circle forever {see attached} this usually happens when i click on a trusted site's "help" tab or button. this is a new problem that just started a week or so ago. {eg, gmail and youtube} please, how can i set it so i can see these view?
Attached screenshots

All Replies (8)

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Can you give an example?

Does it still happen in Troubleshoot Mode?

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This happens if a web page wants to open an external page in an iframe and this website prohibits this via CSP rules or via a X-FRAME-OPTIONS header in the HTTP response headers. You can right-click the frame area with the error message and see if you can use "This Frame: Show Only This Frame" or "This Frame: Open Frame in New Tab" to display this page.

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thank comrades!

zeroknight, iv attached 3 pix of an example. and yes it still happens in Troubleshoot Mode. and that "firefox can't open this page" pop-up stays there and won't go away nor let me continue in gmail,

unless i reload the whole page.

cor-el, i had already come across your info while searching support for my issue,

but when i right-click the frame area with the error message i find that i cannot  use "This Frame: Show Only This Frame" 

nor "This Frame: Open Frame in New Tab" to display this page. {it remains the blank}.

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also, in case this info helps:

Troubleshooting Information This page contains technical information that might be useful when you’re trying to solve a problem. If you are looking for answers to common questions about Firefox, check out our support website.

Application Basics Name Firefox Version 78.15.0esr Build ID 20210927121355 Distribution ID mozilla-mac-eol-esr1 Update Channel esr User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:78.0) Gecko/20100101 Firefox/78.0 OS Darwin 15.6.0 Multiprocess Windows 1/1 Enabled by default Remote Processes 2 Enterprise Policies Inactive Google Location Service Key Found Google Safebrowsing Key Found Mozilla Location Service Key Found Safe Mode true Crash Reports for the Last 3 Days Report ID Submitted

Firefox Features Name Version ID DoH Roll-Out 1.3.0 doh-rollout@mozilla.org Firefox Screenshots 39.0.0 screenshots@mozilla.org Form Autofill 1.0 formautofill@mozilla.org Web Compat 11.1.0 webcompat@mozilla.org WebCompat Reporter 1.3.0 webcompat-reporter@mozilla.org Remote Processes Type Count Web Content 1 / 8 Extension 1 Extensions Name Version Enabled ID Amazon.com 1.1 true amazondotcom@search.mozilla.org Bing 1.1.1 true bing@search.mozilla.org DuckDuckGo 1.0 true ddg@search.mozilla.org eBay 1.1 true ebay@search.mozilla.org Google 1.0 true google@search.mozilla.org Wikipedia (en) 1.0 true wikipedia@search.mozilla.org Bookmark Dupes 6.6 false bookmarkdupes@martin-vaeth.org Capital One Shopping: Online Coupon Tool 0.1.1137 false {aff8af88-06a9-4eee-b383-3af08c47b8c8} Ghostery – Privacy Ad Blocker 8.11.1 false firefox@ghostery.com LastPass: Free Password Manager 4.116.0.2 false support@lastpass.com Panda Safe Web 2.0.60 false {b60873b9-51aa-4566-b2fc-c16de2ec8bff} RetailMeNot Deal Finder™️ 3.0.842 false retailmenot-genie@rmn.com uBlock Origin 1.52.2 false uBlock0@raymondhill.net VirusTotal Scan 0.6.3 false {06def8b7-bcc3-4f1e-add7-7d8222ca0efc} WOT Website Security & Privacy Protection 20220920.0wot false {a0d7ccb3-214d-498b-b4aa-0e8fda9a7bf7} Graphics Features Compositing Basic Asynchronous Pan/Zoom wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled WebGL 1 Driver WSI Info - WebGL 1 Driver Renderer WebGL is currently disabled. WebGL 1 Driver Version - WebGL 1 Driver Extensions - WebGL 1 Extensions - WebGL 2 Driver WSI Info - WebGL 2 Driver Renderer WebGL is currently disabled. WebGL 2 Driver Version - WebGL 2 Driver Extensions - WebGL 2 Extensions - Uses Tiling true Uses Tiling (Content) true Target Frame Rate 60 GPU #1 Active Yes Vendor ID 0x8086 Device ID 0x0166 RAM 0 Diagnostics AzureCanvasBackend skia AzureContentBackend skia AzureFallbackCanvasBackend none CMSOutputProfile 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On what page is this happening ? Is this about a link in an email?

You can hold the Shift key when right-clicking to get the Firefox context menu.

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as i had mentioned previously it happens in certain sites, such as gmail and youtube when i click on the "help" tab. please see the attachments i posted above. they used to open "help" but now only the error window. also,i dont need to hold the Shift key when right-clicking to get the Firefox context menu, just right clicking brings it up

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The youtube help iframe loads for me on version 119 but fails on 78.15.0esr. Attempting to load the iframe in a new tab fails with an error in both versions and on Chromium.

Uncaught (in promise) TypeError: can't access property "parent", a is null


Installing Ignore X-Frame-Options Header allows the iframe to load on youtube.

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thanks! are you sure Installing Ignore X-Frame-Options Header is safe?