Diễn đàn hỗ trợ Firefox

Sometimes when I try to open a link in a Fastmail email I get a new screen saying Fastmail has stopped working. Usually if I go to app.fastmail.com it works.

Looks like your browser is blocking the process.

I have a 100% repro rate of Firefox redirecting linkedin.com to linkedin.cn. Unfortunately there's another problem beyond the unwanted redirection: linkedin.cn no longer exits, it has been dead for years, I literally cannot reach LinkedIn at all. It was working fine a week or two ago. How do I prevent Firefox from redirecting behind my back? I see the status message (is that what it's called) in the lower left corner "Performing TLS handshake to www.linkedin.cn" and of course it only times out. I just verified with "Web" (different browser), it connects just fine, which suggests that it's a Firefox issue, not a system wide one.

Hi, I'm using Firefox on Desktop and Mobile. For last couple of months, I've been experiencing a problem of Shopify stores loading. When we open any Shopity website (stores specifically), it never loads. Sometimes it shows blank page and sometimes nothing.

At the same time, those sites are working fine in other browsers e.g. Chrome, Safari.

However, when I switch to other wifi network (jazz.com.pk), then it works on Firefox too. I tried different methods to fix it, but no success. Before the websites were sometime opening, but for lost few days, 0 response.

Not sure, where is this issue, I contacted my network support (nayatel.com), they also unable to figure it out.

I tried everything on my end, but no success. Need your help.

it is obvious your system has changed: I have windows 11....the help I see is for windows 10

where are the current updates?

Contributor note: See also /questions/1593092.

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?

I followed the instructions to turn off the Enhanced Security for that site. I have always been able to click on a single item like a blouse and it takes me right to it for purchase. But when I click on their menu like active wear I get the message below. Why can I access it on a single item be denied the rest of the site.

Access Denied You don't have permission to access "http://www.hsn.com/shop/fashion/fa" on this server.

Reference #18.7d62117.1782649940.1da61774

https://errors.edgesuite.net/18.7d62117.1782649940.1da61774

Noch einmal: Ich habe keinen Zugriff mehr auf die Seite "Bestsecret.de" (You are blocked) und möchte das aber unbedingt! Was kann ich tun?

Firefox now blocks my email account... https://my.netzero.net/start/login.do I can log in through Microsoft Edge, however Firefox no longer allows this.

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.

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!