Firefox Community Forum

My current version of Firefox is 151.0.4 (64-bit) & for the past 2 weeks or so every time I use the search bar to google something it triggers one of those "We've detected unusual activity from your network" requiring a Captcha. At first I tried all of the typical stuff [antivirus, vpn, extensions, etc...] to make sure that wasn't the issue. But as of yesterday & confirmed today I can actually go to Google's website first & do the search from there with no issue & no captcha.

So, whatever the issue is has to do specifically with doing the search via the search bar... for some reason. Is this a bug in the browser, or is there perhaps some setting that could cause this to happen in the about:config page? Though, I doubt a setting could be it because I've changed the settings I've changed now for years without causing this issue.

Wenn ich im Suchfeld etwas eingebe, kommt immer dieser Fehlercode und ich müsse mich an den Administrator der Webseite melden. Obwohl ich sämtliche Virenprogramme verwendet habe und den PC mehrmals runter- und wieder raufgefahren habe, kommt immer wieder dieser Fehler.

Hi folks!

My Firefox just updated and I'm now receiving the recommended stories (along with the widgets and recent activity.) when I open a New Tab. I was able to disable the widgets and activity and I see the place where I can turn off the Stories, but they are not going away.

In the "Customize" menu accessible via the pencil icon on the New Tab page, toggling Stories off does not make them go away; reloading the page, the toggle is re-enabled.

In the general Settings menu, accessible via the hamburger menu and under "Home and startup," I have Stories ("Exceptional content curated by the Firefox family") toggled off. The toggle does not reset, but the stories still display.

How can I fix this? Thank you all very much in advance.

Every time I start Firefox lately, it keeps prompting me: "You must log in to this network before you can access the Internet." I have no idea what this means and have no problem accessing the Internet in any case. What suddenly started causing this !#@%$ message and how do I turn it off?

Every time I select Gmail on Firefox page, it requires me to sign in with a code. I have selected 'Strict' for browser privacy and 'Clear history after closing Firefox'... plus a number of other settings. I then get a notice of someone signing into my account each time, as does the person who I use as a backup to my account. I'd like not to go through that each time I access my Gmail account.

Thanks for the help.

Dave

I read the article about having 50 GB of free VPN use after I updated Firefox today to version 149.0; however, I don't see anywhere where I can enable the VPN. I've checked in the "Customize Toolbar" section, and I still couldn't find anything. I don't understand, the article made it sound like I should have access, but I've also read that it's not out for everyone yet?

Firefox is up to date, Windows 11.

I frequently watch BBC videos but approx one week ago, they stopped playing. I have your VPN which is usually off as it give me no advantage, (this appeared following the last update), but I've tried switching on and changing to UK location. No change.

Can you give me some suggestions please?

firefox nightly got update with new look

and there is no "Legacy" option no options for accent color,rounding scale, etc.

i hate it please help me or help me with downgrade

Hi there. The past few weeks whenever I try to view any YouTube embed on any website I just get this error and the video does not play: Sign in to confirm that you're not a bot

Of course I am signed in but it does nothing. It works in other web browsers, just not Firefox. I've tried resetting my cache and cookies, private windows, and disabling all extensions but nothing seems to work.

With the new Firefox updates I no longer see my bookmarks. I tried the FAQ's and suggestions but I don't understand them. I need my bookmarks back ASAP! Tried ctrl-shift-B it did nothing.

I am running Firefox version 153.0.1 on a 64bit install of Windows 11.

A few days ago I had to factory reset my computer, including a clean Windows install. Since then, when attempting to access https://vodafone.cz/muj/prihlaseni, I get an Imperva Error 15 "Access Denied" error screen - screenshot attached here. Clicking the Imperva logo on the bottom of the error message leads to https://www.imperva.com/why-am-i-seeing-this-page/?src=23.

I was able to access the site in the past, most recently on July 8, 2026 - this would have been Firefox version 152.0.5.

This error persists in troubleshooting mode but not in private/anonymous (with or without extensions enabled), nor does it appear in Microsoft Edge or Firefox on Adroid.

Clearing cookies and cache did not help - in fact the error first showed up on a clean install of Firefox, when there weren't any cookies or cache stored yet. I've tried different DNS over HTTPS settings and listing the site as an exception in settings, but none of this made a difference. Enabling Firefox's built in VPN also made no difference, regardless of the selected location.

I found a recent post (https://support.mozilla.org/en-US/questions/1588627) describing a similar issue on a different website and tried the suggestion listed there to try a fresh profile - this seemed to work, but within a couple of minutes of browsing the error message returned. I've even reinstalled Firefox entirely, but this too did not help for long.

Interestingly enough, the error message lists a proxy IP address (not blacked out on the screenshot) despite the fact that I am not using a proxy.

The website provider's tech support claims this is an issue on the user side, not theirs - they have not been able to replicate the issue.

Is there anything I'm missing that would explain why this is happening?

Thanks!

Hi, I am on Firefox version 150, but I can't see the new free VPN button. I wanted to try it out, but I can't see it anywhere in my settings. Any advice would be appreciated.

I was following https://support.mozilla.org/en-US/kb/built-in-vpn?utm_source=www.firefox.com&utm_medium=referral&utm_campaign=whatsnew-150#w_turn-on-vpn-in-firefox , but there isn't a button like it shows

I've been using Tabliss on Firefox without any issues, but immediately after updating to Firefox 151.0, a frustrating new loading delay started happening.

Prior to the update, new tabs loaded instantly. Now, whenever I open a new tab, the page sits on a completely blank screen for about 2 seconds before the Tabliss layout, background image, and widgets finally pop in.

Because this issue did not exist at all before version 151.0, it seems like the latest browser update changed how extension-based new tabs are cached or initialized, causing a new rendering bottleneck.

I had opened a support ticket #447010 with Mozella support and they told me that they can not help me, and sent me here. I am "dead in the water" so to speak. It appears that since Firefox downloaded update 153.0(20260715202819) I have had many issues that appear to be getting worse by the day, and now I cannot open or run my email app. I have not wrote down all the errors (sorry) but here are a couple: 431 Request Header Fields too large, the application is having trouble connecting to the server, unable to load the email from Mozella support. After the update (153.0) my bookmarks have moved to somewhere, the sign on for my email app has changed ( use to click on the firefox icon on the bottom tool bar and the sign in box for optonline.net would be there. I understand that sometimes updates (new and improved) make changes to what users have use to for years. Now is have a browser that is not functional and needs to be corrected, I trust you can help and get this sysem usable again, because right now it is not usable. I presume if and when you respond to me issues it will be at this location and not an email. Please help. Thank you