Firefox Community Forum

Accessing Planefinder.com. Have done so many times. After checking on a flight multiple times today, I acquired a notice that said I was blocked from accessing. Is this a scam? It says I entered a word or phrase that was unacceptable and thus am blocked. I can still use Planefinder on my cell phone. I only enter the plane information that is called for. What is going on?

The last 2 days i have had problems signing into my Aliexpress account. The site has told me it is temporarily unavailable, then that the server is taking too long and now that parental controls have been used.

I am 68. I don't need or use my computer for sites that require parental control.

別のノートパソコンやスマフォではアクセスできるがデスクトップパソコンだけで　https://www.minim.jp/　アクセスできない。他の多くのサイトにはアクセスできる。

今まで利用していたChromeでもEdgeでも10日前にアクセスできなくなったので、試しにFirefoxをインストール、その後、このサイトにアクセスできた。それでhttps://www.minim.jp/に接続するときだけ、Firefoxを利用していた。

しかし、28日アクセスすると「エラーコード: PR_END_OF_FILE_ERROR」が出るようになりアクセスできなくなった。 現在もChromeやEdgeではアクセスできない。

問題箇所が不明で改善方法が分かりません。 問題箇所、改善方法をご教示ください。

Windows11　Firefox　146　です。 ウイルスバスターの問題かもしれないと思ってアンインストールして、確かめたが改善されなかった。 ChromeやEdgeの公式版のβ版(最新バージョン)でも改善しませんでした。 OS　25H2　26200.7462で最新版

I get Apple emailed advertisements. When I wished to unsubscribe I am sent to "c.apple.com". Firefox tells me that "We’re having trouble finding that site" and "We can’t connect to the server". I believe this is a valid site. I would like to know if Firefox blocks certain websites. If there are blocked sites what is the procedure to unblock them.

duplicate of /questions/1555123 thread

Every time I do a search it takes me to a virus warning anad won't go further.

Hello. I did not receive an answer to my last help request. A Block Ad does not allow me to access this site: https://www.tempo.pt/lisboa.htm?utm_source=newsletter&utm_medium=email#-0eebc5457c97ef8bca0b518ed4194951 I need some help, please. This is a site informing me about the weather. Thank you.

Suddenly I can no longer connect to gmail or googlemail on mozilla. It works fine everywhere else. At present I'm having to use Microsoft Edge for emails. Everything else on Mozilla seems to work fine. I don't get any messages to say why. The input just sits there with the fullstop going left and right. Any ideas ?

Firefox is preventing me from going to certain websites because it is telling me I am using adblocker but I have none installed.. I am trying to play around with the settings but I still can't do it. Is there an inbuilt adblocker? I need help please...

I am experiencing an issue where Google.com (other google domains work fine) will not load in Firefox, resulting in an infinite loading loop. Other browsers on the same system (Brave) work fine.

Here are the steps I have already tried:

Reinstalled Firefox completely

Removed Firefox via sudo apt remove --purge firefox -y

Cleared all user profiles and caches: ~/.mozilla/firefox, ~/.cache/mozilla, ~/.config/Mozilla

Reinstalled via Flatpak

Tested network connectivity outside Firefox

curl google.com works correctly

DNS resolution works via getent hosts google.com in the host system

Checked proxy settings

Ensured “No proxy” is selected in Firefox → did not resolve the issue

Tested in Safe Mode (disabling extensions)

Problem persists, so not caused by extensions

Tried disabling IPv6 inside Firefox

network.dns.disableIPv6 set to true → no effect

Cleared DNS cache inside Firefox

about:networking#dns → clicked “Clear DNS Cache” → no effect

Disabled DNS-over-HTTPS (Secure DNS)

about:preferences#privacy → “Use secure DNS” → disabled → no effect

Disabled HTTP/3 (QUIC)

network.http.http3.enabled set to false → no effect

Verified Flatpak network permissions

flatpak info --show-permissions org.mozilla.firefox shows network access allowed

Inside the Flatpak shell:

flatpak run --command=sh org.mozilla.firefox getent hosts google.com

→ returns only IPv6 address: 2800:3f0:4001:839::200e google.com

I'm building a website from scratch and its going great. I just tried to implement a CSP and it worked except for one small section of my website that allows a user to upload an image and that image is supposed to be displayed back to the user. Anyways long story short the CSP blocked me so I tried to whitelist data: and it still didn't work. defeated I removed the CSP from Nginx to work on it later but when I went to try and test again I get this error. ``` Content-Security-Policy: The page’s settings blocked the loading of a resource (img-src) at data:image/webp;base64,UklGRqbeAABXRUJQV… because it violates the following directive: “default-src 'self'” ``` I have confirmed with Curl and by inspecting the network tab that there is no CSP included in the headers anymore. I have restarted Firefox, created a new Firefox profile, and cleared my cache to the end of time and yet still the error persists. I don't know where or how Firefox is storing website headers but they persists and also apparently work between profiles an implication I'm not going to delve into here. If someone could point me to the file where the headers are stored so I can delete it that would be wonderful.

specs Qubes OS 4.2 Mozilla Firefox 140.4.0esr

I hope I sent this to the right place.

PC is using Windows 11, latest updates. I have signed in to Mozilla Monitor many times in the last hour, but "Upgrade to Premium" does not appear in the upper-right corner as several help websites say it should. I cleared all cookies and turned Enhanced Tracking Protection off for the site, no help. I restarted Firefox - it's now at release 145.0.1 (64-bit), no help. Any other ideas? Thanx.

Meldung: Lassen Sie challenges.cloudflare.com zu, um fortzufahren. Image Siehe Bild Click auf Erlauben hat keine Auswirkung

I am getting the following message on a couple of different website pages today. "Please unblock challenges.cloudflare.com to proceed." I don't know what this means! What do I do to unblock/fix this, please?

Thanks, Paul