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This is driving me insane. On mobile data (3,4,5g) Firefox will not open any websites, it just sits with a white page until eventually I get "connection reset". Every other browser on the device works fine though, and Firefox can access sites when on WiFi.

I have uninstalled and reinstalled the main app *and* installed focus,beta and nightly versions,all have the same problems. Permissions on mobile data are allowed.

I cannot even get a sensible log or network trace out of the browser as there are no Dev tools.

It sometimes feels like Mozilla are trying their absolute hardest to lose users, I even had had the old "browser uses 12gb of memory for two tabs" problem on desktop the other week.

Firefox on my android phone times out on any webpage whenever I am not connected to a Wi-Fi. All webpages and IP addresses timeout with no response. Same issue occurs on Firefox Beta app and Firefox Nightly. All other applications work as expected with full internet access on mobile data. The same pages/addresses respond as expected on Chrome and the built-in browser.

Simply put, all Firefox apps have no internet connectivity on mobile data.

Solutions I've attempted with no success or change: Re-install Firefox. Logging out of Firefox Sync. Clear Firefox data and cache. Disabling tracking protection. Disabling HTTPS-only mode. No proxy settings are enabled. Confirmed Firefox application has mobile data network privileges. Disabling, re-enabling mobile data network privs. Installing Firefox Beta and Firefox Nightly; same issue.

Another possibly related issue: Firefox does not follow routes from a Cisco AnyConnect VPN on my phone. Opening pages/IP addresses routed through the VPN are rejected or timeout as if the VPN is not active at all. The same pages/addresses respond as expected on Chrome and the built-in browser. This occurs over Wi-Fi as well, of course nothing works on mobile data as described above.

Device: Oneplus 8T (KB2003) OS: OxygenOS 13.1 (Android 13) Firefox version: 117.0.1

When I go to espn.com it automatically takes me to espn.nl. which is Netherlands version. Translating to English still leaves me with Dutch version

• Opening links results in an error that says "This web site requires a secure connection."

• Upon checking the URL you will see that https:// will be added before href.li/?https:// which results in https://href.li/?https://example.com

• When I removed the first https:// then the website will open correctly without the error.

Thank you.

How to bypass this, please? I beg you!

It's always the same link. It ruins my business immensly. I have searched the whole internet on how to disable it but I found no solution.

This is via Bluestacks 5 Android Emulator. It doesn't have any Anti Virus enabled. All virus protections are disabled. I have disabled Enhance Protection and disabled HTTPs scanning inside Firefox settings but that didn't fix it.

Please help me!

As of yesterday (1st Nov 2023), Firefox started reporting "Proxy Server Refused Connection" when trying to browse websites over Wifi.

I have a proxy server configured in my phone wifi settings, and this has worked before, and still works in other apps (Chrome, etc)

Checking with tcpdump on the proxy server itself, I see my phone trying to connect to port 80, rather than the configured port (8000)

Firefox version: 119.0.1 Phone: Samsung Galaxy S22 Android version: 13

Hi,

I have a custom site on my ISP's webspace that can be access via an https:// link. Firefox for Android (129.0.2) on my new phone (Samsung a35, Android 14) says that it's not secure, which means I frequently have to go though the not secure>advanced>accept risk process.

The problem is that this is literally the only browser instance I have that thinks it isn't secure. Chrome, on the same device, says it is, Firefox for Android thinks it is on two other devices. Firefox for Windows thinks it is. I can find no other browser on any device or platform that thinks there is any problem.

Any hep appreciated.

Hello,

On Firefox for Android, I get "Proxy is refusing connection" error while attempting to connect to any site on the Internet. But I didn't configure any proxy connection for Firefox! Moreover, this error happens when I use my home Wi-Fi network, but browser works properly when using cellular data or any other Wi-Fi network. Also, browser works for some time if I start VPN (Psiphon in my case), stop Firefox through Android settings, clear cache and start the browser again.

Best regards, Peter

It’s not I stall and update as far as I know, it’s an issue I’ve never seen. My browsers, Firefox chrome DuckDuckGo etc none of them can produce search results though my internet is very much connected to my router. My isp can’t find an issue. What is wrong?

I recently logged into the WIFI of my TAFE, which uses a proxy, only to find that Firefox would not work. 1 hour of crazed searching later I have found that you pretty much *cannot use a proxy with Firefox on Android*.

Sure technically you can download the FoxyProxy add-on or go to about:config and change the settings there (but not on the stable build which y'know most people use) but the fact that the stock, stable install has *zero* support for proxies, which are extremely common on school/work networks, is absolutely unacceptable. This is *basic* functionality that was reported as missing as far back as 10 years ago and *nothing* has been done to fix this.

The worst part is Mozilla are clearly aware of this. An issue was opened on github and was only closed to be moved over to bugzilla where it remains open. And for some reason on bugzilla the severity is marked as N/A even though this literally means you cannot use Firefox Android on any network with a proxy

I apologize for the harsh and direct tone but I am truly astonished that no one seems to think that this is as severe as it actually is. I use Firefox because I love open source software and I hate the idea of google having a monopoly over browsers. Things like this where basic features are missing (resulting in the browser being completely unusable on certain networks) make me reconsider if this browser is even worth using. And please don't say that FoxyProxy solves all of this because the fact that basic functionality is locked behind a third party extension is unacceptable.

For the past few days Firefox on Mobile has not been working with mobile data. Other installed browsers work. I am not sure what seems to be the issue.

I am running FF version 119.01, on Android 13.

Sometimes the lock icon in the url bar shows that a connection is insecure (slash through lock) when the connection is secure and using https. I haven’t been able to detect a pattern, but it’s happened enough times that it has become noticeable. I’m curious if there’s a reason behind this, or perhaps I’m misunderstanding how to interpret the lock icon? I’ve attached a screen shot of an example from the VSCode extension marketplace web site where there seems to be a disconnect.

On 28 September 2023 It started to "show proxy server refused connection" when i was browsing google pages. I've tried chrome it seems to be working just fine. Regarding the Mozilla I've tried everything, reinstalling several times, restarting the phone, reading on the net for similar problems and i failed to find solution. On 2 October 2023 I've tried again to install Mozilla it seams to work just fine. My question is what happened?

Hello,

The default browser in our company is Firefox. We have some internal websites now available from outside with mTLS.

This is working fine with Firefox on laptop (fedora), but I cannot make it work with Firefox on Android (which is crucial as the aim of this project is to have those apps securely available to all or employees from outside).

I installed the user certificate in the Android "User credentials" trust store, but Firefox (version 128.0.1) is not offering to use that certificate for mTLS, and just show a "Secure Connection Failed" error message.

How can we have Firefox on Android using the user CA to access those applications?

Thank you in advance for your feedback.

Best regards,

B.