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I keep getting this message:

Firefox Can’t Open This Page

To protect your security, login.microsoftonline.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window. What can you do about it?

To protect your security, login.microsoftonline.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

I can't open the link in a new window as I have to click on a tab and when I right click on the tab it only gives the pop up box that says "take a screen shot" etc.

I tried "allowing" the website for pop-ups but it still didn't work. I don't know what to do now.

I edit a newsletter substack and sometimes I have links embedded in it. Mozilla denies me access to those links when I check the newsletter. Do I have to cancell Mozilla protection to have full access to the links in my newsletter from substack?

Hi everyone,

I'm having trouble accessing my local network devices (a 3D printer and Raspberry Pi) using short hostnames like "http://impressora3d" or "http://impressora3d/". Firefox keeps blocking the connection with the "Looks like there’s a problem with this site" error page.

I've captured a network log using 'about:networking' and I can see that: 1. DNS resolution works perfectly and points to my local IP:

  "CompleteLookup: impressora3d has 192.168.1.10"

2. Firefox is upgrading the request to HTTPS (port 443) automatically:

  "nsSocketTransport::ResolveHost [...] impressora3d:443" -> "pushing io layer [0:ssl]"

3. The device rejects it because it only listens on HTTP (port 80):

  "Bad Socket 804b000d" (NS_ERROR_CONNECTION_REFUSED)

What I have already tried: - Disabled "HTTPS-Only Mode" entirely in settings. - Checked "Secure DNS" (DoH) settings (set to Increased Protection and added exceptions). - Cleared history and used "Forget about this site" on the hostname. - Typed "http://" explicitly.

Firefox still refuses to connect via plain HTTP (port 80). Is there any hidden 'about:config' preference or HSTS cache forcing this behavior for local unformatted domains?

Thank you!

I frequently experience delays in accessing my e-books on loan from Worcestershire County Council library. It seems as though Firefox is being Blocked. Does anyone else have experience of this problem?

Up until today (3/26) , accessing CompuServe (AOL) mail was not an issue. Now , getting to the site is OK , but when it attempts to access the mail , I get:

Firefox Can’t Open This Page

To protect your security, compuserve.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

What changed overnight? After getting the message , if I click on Mail , it works just fine. There is also a similar message when closing the page , but not every time.

Any clues?

So i have freshly installed firefox, every time i look up something on google i don't get any AI overviews, but when i use google in a private window google's ai overview works in there. what is going on? (keep in mind i have ublock origin activated on both windows but the ai only works in private mode where im not signed in)

My mothers new phone won't load external links and mine does?

I have way more strict security settings and same extensions. She has 2 and I have 13 extensions but they overlap and are not the issue. When someone sends her a link her Firefox does not convert the link like mine does, she gets a link in format https://share.google/ + string of letters, when she opens it, it's a blank page. When I open the same link it converts it from that to a regular link (https://). I have installed Firefox to at least 3 other people and none have this issue. I don't have this issue on desktop either.

If it makes a difference: Out all the people that have this browser on their phone she's the only one that has a new phone with Android 16 (mine is Android 14). They are both up to date on both software and Firefox updates.

Hi there,

Since the last update, GMX is able to detect my ad blocker and blocking access to my inbox unless I disable the ad blocker. I don't want to disable it. Is there a possibility that you adjust the update or can I do something else? Do other users have the same problems?

Kind regards Eva

Something is wrong with your network configuration We checked your network configuration and found that the following domains are not accessible.

   hls-c.udemycdn.com

This may prevent you from viewing videos or significantly degrade video performance on Udemy. If you use an ad blocker, please check the ad blocker settings page, whitelist the domains above, and refresh this page to recheck your network configuration. If the problem remains or you are not using an ad blocker, please check your system network configuration or reach out to your IT team and ask them to whitelist these domains.

Every time I try to use Google as a search engine in Firefox, this message appears. "About this page Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen?:

I believe this occurred earlier in the year but was marked as solved. Immediately after Firefox automatically update to 151.0 64 bit today (in Western Australia), I am plagued with it as well.

I have tried disabling extensions and am not (I believe) running in incognito mode.

Any suggestions please?

You block me when I want to open deposifiles.com I trust that site and have used it for many years. Stop this blocking action please.

https://192.168.0.1/webpages/index.html#/login Firefox Блокирует доступ к роутеру так же на многих сайтайх начались проблемы с загрузкой страниц, как выключить защиту страниц в firefox она блокирует доступ к моим страницам