Could someone who's familiar with Firefox help me with this error?


  1. Posts : 17
    Windows 10
       #1

    Could someone who's familiar with Firefox help me with this error?


    Sorry I know this probably isnt exactly the right place for this but I'm not finding any help for my situation specifically.

    I'm pretty sure one of my about : preferences settings is causing this

    User.js User.js - Pastebin.com
    Attached Thumbnails Attached Thumbnails Could someone who's familiar with Firefox help me with this error?-xesmqqmyqnbb1.png  
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  2. Posts : 4,911
    Windows 11 Pro 64 Bit 22H2
       #2
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  3. Posts : 17
    Windows 10
    Thread Starter
       #3

    spunk said:
    I've already determined that this isn't being caused by one of my addons. The only addons I have that could possibly be relevant to this are uBlock, uMatrix and Popup Block Strict. This started happening long after started using these addons. It's definitely one of the advanced preferences. Running the troubleshooter cant help me identify the one specific line thats causing this. I want to keep all the other prefs intact. Don't wanna reset.
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  4. Posts : 73
    Windows 10
       #4

    Here is the error from Mozilla: Website will not allow Firefox to display the page if another site has embedded it | Mozilla Support

    Websites can use x-frame options or a content security policy to control whether other websites may embed them in their own pages.
    You may be able to edit the CSP header from your request and then see if the site loads the embedded content otherwise simply use the button as suggested by your browser.

    Edit: It looks like it's a response header so just use the button offered by Firefox.
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  5. Posts : 7,056
    22H2 64 Bit Pro
       #5

    Nothing can be done about that except open the site in a new window or else get the URL and copy and paste into the address bar.

    Website will not allow Firefox to display the page if another site has embedded it | Mozilla Support

    Same advice as above post.

    Then vids will play.

    Could someone who's familiar with Firefox help me with this error?-librewolf.jpg
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  6. Posts : 43,394
    Win 10 Pro (22H2) (2nd PC is 22H2)
       #6

    And you can always compare how a different browser handles URLs that are handled in that sort of way.
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  7. Posts : 282
    Windows 10 Pro
       #7

    I looked over your user.js file and see nothing that pops out. I tried adding the user.js file to portable Firefox and was able to go to the website.

    Lets make absolutely sure your add-ons aren't the issue. Press and hold the Shift key and while holding the Shift key launch Firefox. Don't refresh just start Firefox in safe mode. Now go to the website.

    It does look like a website issue on their end though.
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  8. Posts : 7,056
    22H2 64 Bit Pro
       #8

    F22 Simpilot said:
    I tried adding the user.js file to portable Firefox and was able to go to the website.
    It's not that website that's the issue. It's vising another site (domain) where a vidsrc video is embedded in the page.
    @Mandalorian

    If the video isn't offensive post the link to the page.
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  9. Posts : 7,056
    22H2 64 Bit Pro
       #9

    You can try:
    security.csp.enable = false

    Not recommended and not tested by me.

    Edit. Apparently it's been removed so is no longer available.
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