Firefox Support Forum

Some of this will likely sound ridiculous.

Yesterday, I noticed my ad blocking wasn't working. I eventually realized Ublock had been uninstalled. I'm still dumbfounded about how this happened, I mean, you really can't do that by mistake.

Today, same thing happened with loss of ad blocking. This time, I noticed UBlock was not on my toolbar. It also did not appear in the Puzzle Piece drop down menu. It was still installed, but inoperable. I had to drag 'n drop it's .xpi onto the addon manager to revive it.

The other day , I posted about blank buttons on my toolbar. Not only blank, but not operational for whatever addon they represented. Today, after the Ublock reinstatement, once again blank button appeared.

I develop profiles in stages, like templates for further enhancements. Addons, etc. Before I did anything, I went to three of those more basic profiles, one more further developed in terms of customization, to compare with the current one.

They both not only had blank areas where before there were icons, but UBlock was uninstalled on all of them.

Have you ever seen anything like that?

I know, I know, you think I'm crazy!

BTW, I cleared the startup cache on both, as was suggested in the previous thread, and the icons returned to the toolbar, but in two of them, they are still missing in about:addons

Firefox version 122.0 Mac: Sonoma 14.1.1 apple silicon

The problem emerged about a little over a year ago (around September 2022). It started with an installation of firefox on another machine running BigSur, and I guess the problem got ported when I restored a time machine backup on this current machine. I attempted to troubleshoot the issue by following mozilla support and reddit threads but to no avail. I, at the time, settled on monthly time machine backups, but now finally decided to address it properly.

Troubleshooting steps that I have followed:

• going into the about:config page and changing the places.history.expiration.max_pages and places.history.expiration.transient_current_max_pages to 2147483647 then to 999999 after reading about how a value too high might be ignored (both values didn't seem to change anything)
• going into the about:config page and changing the places.history.expiration.transient_optimal_database_size to 85534800
• removing the add-on/extension manager as seeing that it might remove history for some reason (from a [thread] by IceTemple)
• In the privacy and security tab, history is set to Firefox will use custom settings for history

Things I suspect might be the problem:

• I originally used the Chinese version of firefox (downloaded from the .cn website) and reinstalled the international version (from .com) after getting annoyed by the built-in ads. For convenience sake, I ported the profile folder over which might have carry the problem over. That being said, I don't think this problem existed when I just started using firefox but appeared awhile later.
• result of an update, don't know which though
• certain extensions (I haven't went through them individually since I installed a lot)

My questions:

1. How to stop Firefox from doing this ever again?
2. Alternatives of storing history if nothing works
3. Why did my troubleshooting steps not work? Is there something wrong with my version of firefox that prevented the about:config changes from working?
4. If I have to resort to backing up the places.sqlite history file, how do I restore/reintegrate them with current history file?

English isn't my first language so I apologize for any confusion that may arise due to how I articulate. Any help is much appreciated

I have just started getting Access Denied messages from my Banking account. The bank is telling me that it is due to updated security and that I should start using Chrome or Edge browsers which I do not want to do. It has something to do with the Enhanced Tracking Protection settings. Does anyone know how to fix this?

When I check Firefox for add ons (Manage your extensions), I see the two that I installed. When I use "Help -> Troubleshooting Information" "Application Basics": Multiprocess Windows "Remote Processes" , I see in addition: Amazon.co.uk Amazon.com DuckDuckGo eBay Wikipedia

How do I eliminate these?

I had set Google to be my default search engine. But that seems to have been replaced by yahoo! [I have tried to put a screen shot here but Firefox won't let me] I searched for Google in the search box which put the following in the url.

https://uk.search.yahoo.com/yhs/search?p=google&hspart=iba&hsimp=yhs-syn_weatherprince&param2=9dUI1n2R0BLDxNuWfiP4aSFOTltNdSPoIx38%252BUf%252FiXrvPdoGmStdlfwLFZYDv ...

In Settings>Search, there is no Yahoo. Presumably it has hacked my computer. How can I get rid of it? I am running Windows Defender (3 1/2 hours to go) and I have Reset Firefox. Win11, 64 bit, latest Firefox

Before updating Firefox to 123.0.1 (64-bit) + MacOS Sonoma, I could use FIDO2 on OnlyKey and login to my proton mail. Now, however something has changed on Firefox that I get presented with two prompts to touch my usb key, but the key itself doesn't respond to the second prompt and login fails.

I first get this prompt as before. I select 'Authenticate' and would be presented with the second picture. Since my key is not expecting to be touched, nothing happens when I touch it and login fails with the message displayed in the last picture.

Hello, Firefox randomly downloaded a file, with seemingly randomly name, that is 0 bytes and in download manager the source is moz-safe-about. It happened when I was accessing a popular wiki site. I opened the file in notepad, it was empty. I put it on virus total and came back negative, as it is an empty file. I've curbed through the support tickets here, using the keyphrase 'moz-safe-about'. I understand this was/is quite a common problem, but it still makes me quite worried and left a sour taste in my mouth, as I haven't understood any of the explanations. I have enabled firefox to ask me whenever it wants to save something (I have no idea why this isnt the default state). Happened on a somewhat fresh, updated win 11 installation. I'm also attaching more information here with a picture. Long story short: should I be worried? Am I overreacting and this is just some sort of a bug that occurred while getting a sites data? Thank you for your time.

Hi dear Community!

As of recent, my AntiVirus software is flagging Firefox.exe (Full path: C:\Program Files\Mozilla Firefox\firefox.exe) as a vulnerable application. I have been using firefox for years (Because I love it, you guys are heroes) and i have been using Kaspersky for years. Firefox has only been flagged as of recent.........

I hope someone knows why, has this too or can calm my paranoia

Some Additional information:

Have you clicked any suspicious links? No i have not. The links i have visited were all https, checked and acknowledged by Kaspersky and i can say with full certainty that the sites were legit

Have i downloaded any files as of recent? Yes, but from reputable sources and always checked using Hashes and validating using KSN (Kaspersky security network).

(For the Mods, im sorry for previously posting this in the wrong forum.)

Release notes for Firefox v120.0 https://www.mozilla.org/en-US/firefox/120.0/releasenotes/

Among these release notes, "Firefox’s private windows and ETP-Strict privacy configuration now enhance the Canvas APIs with Fingerprinting Protection, thereby continuing to protect our users’ online privacy." How good or bad is the feature? There's the canvas blocker extension which might now be obsolete, then again without details this is impossible to anser. How exactly does the Canvas API enhance Fingerprinting Protection with this new update? The release notes don't explain that, where do i find details? Firefox should use this for all windows not only private ones.

Among the relase notes, "Firefox is rolling-out Cookie Banner Blocker by default in private windows for users in Germany during the coming weeks. Firefox will now auto-refuse cookies and dismiss annoying cookie banners for supported sites." I'm not german but would still like to use this feature as the cookie agreement popups are extremely annoying and time intensive to dismiss. Apparently in about:config "cookiebanners.service.mode" is the precise setting name. Does it have to be set to "1" to be active? This setting seemingly has the potential to replace extensions such as "Cookie AutoDelete" or uBlockOrigins Filterlists/Easylist cookie notices. Firefox should use this for all windows not only private ones.

Among the release notes: "Firefox has enabled URL Tracking Protection by default in private windows for all users in Germany. Firefox will remove non-essential URL query parameters that are often used to track users across the web." I don't get why this would only be active in private windows and germany. Firefox should use this for all windows not only private ones.

Among the release notes: "Firefox now imports TLS trust anchors (e.g., certificates) from the operating system root store. This will be enabled by default on Windows, macOS, and Android, and if needed, can be turned off in settings (Preferences → Privacy & Security → Certificates)." I've no idea what to think about this, is it a good or bad change and why? Don't try to fool me here, i want honest ansers no BS... is there potential for abuse? If Firefox uses CA's from the OS then what happens to firefox internal CA's, remain unchanged?

Among the release notes: "Firefox supports a new “Copy Link Without Site Tracking” feature in the context menu which ensures that copied links no longer contain tracking information." While this is a welcome change, i'd be much much more useful to replace “Copy Link Without Site Tracking” with “Open Link Without Site Tracking”... Otherwise there's the needless waste of time manually open a new tab and paste the link... This completely lacks any logic if you ask me, why didn't mozilla make it as i suggest above in the first place? Why the manually klick klick waste of time?

Lastly a question unrelated to this update, when RFP is enabled and the browser-screen-size is spoofed, if i go into fullscreenmode by accident, will this expose my true resolution or not?

I was trying to troubleshoot a black screen of death issue with Windows10 that first started appearing after Firefox adopted the new Private Browsing icon. In the process of doing so, I tried every combination of Firefox settings imaginable. Nothing worked as far as Asus, Windows, or Firefox settings, rolling back/ updating various drivers, etc. So, I decided to refresh Firefox and when that did not work, I decided to uninstall and reinstall Firefox. I'm not sure if that worked as far as the original black screen of death issue is concerned because now Firefox no longer remembers my cookies and site data allowed exceptions (my only exceptions were my bank websites, which worked as expected until the uninstall/reinstall). I've tried selecting always use private browsing and always delete cookies and site data when Firefox is closed (my previous settings), but every time I close Firefox and return those three exceptions are missing. Any ideas would be most welcome. BTW, does anyone know how to use that folder Firefox puts on the home screen labeled "Old Firefox Data" because I was expecting there to be a .exe file to click on to reload all the previous settings in one fell swoop.

When I load www.foxnews.com a popup box comes up and says to view the news to turn off my ad blocker, and then makes the site inoperable. I can't find an ad blocker so I'm thinking I might have a security setting wrong. I can view the website in Chrome with no problem. Any help is appreciated. Gary

Hi,

My saved passwords are not showing up. I followed the advice on this post, by setting signon.debug and doing about:logins. Here are the errors shown in the console:

LoginManager: Getting a list of all logins asynchronously. LoginManager.sys.mjs:395:14 Login storage: Returning 502 logins for specified origin with options [object Object] storage-json.sys.mjs:704:10 Login crypto: Failed to decrypt cipher text of length 92 with error NS_ERROR_FAILURE. crypto-SDR.sys.mjs:179:12

   ->
   decrypt resource://gre/modules/crypto-SDR.sys.mjs:197
   decryptLogins resource://gre/modules/storage-json.sys.mjs:966
   map self-hosted:221
   #decryptLogins resource://gre/modules/storage-json.sys.mjs:948
   InterpretGeneratorResume self-hosted:1465
   AsyncFunctionNext self-hosted:852

Then that last mesage is repeated another 501 times.

Any idea what is wrong. I have only one profile the default one. Firefox is up to date at 122.0.1 on iMac 12.7.3

Thank you David

TL;DR : Disqus comments used to work while using privacy Strict mode now it doesn't.

After years of it working out of the get-go while using Strict mode up till recently (about a year ago this was really low on my priority list) refused to work I though it was my Ad blocker was causing issues but after setting it in the filters to allow and even after turning it off still no dice.

Removed all add-ons tried again still Disqus comment section refused to load in the websites I regularly visit. So after giving up, I just look around in the browser setting to see if there is anything that may cause conflict with certain scripts from running.

CNN website being blocked. This notice comes up:'''' We apologize, but your web browser is configured in such a way that it is preventing this site from implementing required components that protect your privacy and allow you to view and change your privacy settings. This functionality is required for privacy legislation in your region.''''

I have a local only test ca and test web server. How do I load the CA certificate into Firefox. Adding it via "settings" did not work, the browser says Adding a root via "settings" does nothing. When I access a web server it says "the original certificate provided by the server is untrusted", in the issuer name field. It never actually shows the certificate. Adding a file to the appdata area (this is on windows 10) also fails; changing the enterprise ca settings does not work. This used to work.

Each time I connect to the Sam's Club website I get a popup box that says "Let us know your human (no robots allowed)" even before I try to login. There is an "X" in the upper left corner of the message that I can click on twice and the box goes away. I then can click login and my password saver fills the boxes at which time I get the same box. I click again on the X and a message says there is a problem, try again later.