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Today (06/12/2025) upon opening a new tab, Firefox slid the new option of uploading a custom picture to apply to the background. Tried the new feature, now I can not find the setting that allows me to change the picture. I read the thread "Customize your wallpapers". The instructions are as follows; You can personalize your Firefox New Tab page by adding one of the available wallpapers. Follow these steps:

  1. In the right corner of the New Tab page, click the gear IG settings icon.
  2. In the customization panel, under the Wallpapers section, you will see different categories like Solid colors, Abstract and Photographs.

       Click the category you prefer. For example, selecting Abstract will show a variety of abstract designs. 

The problem I have is the customization panel is no where to be seen, I have click on EVERYTHING possible, it is not in my settings, why? How do find this?

A message sent to me never appeared in my mailbox but was labeled "blacklisted by user" I cannot find a way to undo this !

550: 5.7.1 [PF] Mail rejected by policy. (Blacklisted by user)

I am experiencing strange behaviour with Thunderbird and certain add-ons. For some time now, when I use certain add-ons that are supposed to display a menu, the menu does not appear. It is replaced by a circle (see attached image : two different add-ons, not showing simultaneously, but merged into the same capture). I have disabled all other add-ons, but this has not resolved the issue. I think there must be a setting that is causing the problem. But with so many settings, I don't know where to look.

Does anyone know how to find the reason for this behaviour?

I am using Thunderbird 139.0.2 (64-bit) with Windows 11.

Thank you for helping.

제목 그대로입니다.

절대로 테마가 아닌 새 탭 페이지 즉 아무 웹사이트도 접속하지 않은 상태에서 이미지 변경하는 방법입니다.

오늘 업데이트가 되었다며 이미지를 변경하라고 해서 아무 이미지를 넣었다가 되돌릴 방법이 없어서 1시간을 낭비했습니다.

절대로 테마아닙니다. 새 탭 페이지입니다. 어떠한 부가기능도 사용하지 않았습니다. 이러한 문제가 아닌지 검토하라는 답변을 줄 경우 무조건 최악의 평가를 내릴겁니다.

How to remove firefox's adblocker of ewall faucet section of Optimalbux.com needs the adblocker removed to access the ewall faucet part of click for reward feature in Ewall.biz website.

I'm looking for solution to make or prevent Thunderbird automatically filling up the "From" box.

In other words; I want the "From" section to be empty every single time for me to fill up. Just like I have to do with the "Subject" and "to" boxes.

I'm willing to hack Thunderbird if there's no an user friendly solution for this I want! Just please tell me what to do and I'll do!

Thank you in advance, Attila.

Somehow I have lost my check and download email buttons at the top left of Thunderbird. I have checked what I believe is every option to get them back but to no avail. Somehow I hid the easy enough but now they are gone I can't seem to find out how to get them back.

Thoughts? Darren

hi, i cant find an option to dismiss the new sidebar. it's pointless and i can switch all the buttons off, but now there is just an empty space at the side of my browser. very annoying. i hate the AI integration and i will not be recommending this browser to anyone in the future because of it. I have spent years convincing others to make the switch to firefox, but what's the point if it ends up just as toxic and useless as every other browser. disappointing.

I am having some trouble getting Thunderbird to display all my messages. I tried troubleshooting mode and found that all the messages were displayed. Restarting in normal mode having disabled my extensions and hardware acceleration, the problem returned and I could not see most of my messages. So I need to make the other changes that troubleshooting mode makes. These are described at https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird as

• Window and sidebar size and position settings (described in terms of Firefox)
• userChrome and userContent customizations ; see userChrome.css and .js and userContent are unsupported

I do not understand what these are and how I can set them for routine use. Can someone point me to an explanation? Thanks.

how come when ever i install any antivirus except for windows defender do i get this in Firefox Your browser is being managed by your organization. i went to policies but do not know what to do why can this not be removed from Firefox what do i need to do in policies to get rid of this. here is what i get in policies did not remove any thing this is what i get help please thi is documentation in policies.. Documentation Policy Name 3rdparty Set policies that WebExtensions can access via chrome.storage.managed. AllowedDomainsForApps Define domains allowed to access Google Workspace. AllowFileSelectionDialogs Allow file selection dialogs. AppAutoUpdate Enable or disable automatic application update. AppUpdatePin Prevent Firefox from being updated beyond the specified version. AppUpdateURL Set custom app update URL. Authentication Configure integrated authentication for websites that support it. AutofillAddressEnabled Enable autofill for addresses. AutofillCreditCardEnabled Enable autofill for payment methods. AutoLaunchProtocolsFromOrigins Define a list of external protocols that can be used from listed origins without prompting the user. BackgroundAppUpdate Enable or disable the background updater. BlockAboutAddons Block access to the Add-ons Manager (about:addons). BlockAboutConfig Block access to the about:config page. BlockAboutProfiles Block access to the about:profiles page. BlockAboutSupport Block access to the about:support page. Bookmarks Create bookmarks in the Bookmarks toolbar, Bookmarks menu, or a specified folder inside them. CaptivePortal Enable or disable captive portal support. Certificates Add certificates or use built-in certificates. Containers Set policies related to containers. ContentAnalysis Enable or disable connection to data-loss-prevention agent. Cookies Allow or deny websites to set cookies. DefaultDownloadDirectory Set the default download directory. DisableAccounts Disable account-based services, including sync. DisableAppUpdate Prevent the browser from updating. DisableBuiltinPDFViewer Disable PDF.js, the built-in PDF viewer in Firefox. DisabledCiphers Disable ciphers. DisableDefaultBrowserAgent Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent. DisableDeveloperTools Block access to the developer tools. DisableEncryptedClientHello Disable use of the TLS feature Encrypted Client Hello (ECH). DisableFeedbackCommands Disable commands to send feedback from the Help menu (Submit Feedback and Report Deceptive Site). DisableFirefoxAccounts Disable account-based services, including sync. DisableFirefoxScreenshots Disable the Firefox Screenshots feature. DisableFirefoxStudies Prevent Firefox from running studies. DisableForgetButton Prevent access to the Forget button. DisableFormHistory Don’t remember search and form history. DisableMasterPasswordCreation If true, a Primary Password can’t be created. DisablePasswordReveal Do not allow passwords to be revealed in saved logins. DisablePocket Disable the feature to save webpages to Pocket. DisablePrivateBrowsing Disable Private Browsing. DisableProfileImport Disable the menu command to Import data from another browser. DisableProfileRefresh Disable the Refresh Firefox button in the about:support page. DisableSafeMode Disable the feature to restart in Safe Mode. Note: the Shift key to enter Safe Mode can only be disabled on Windows using Group Policy. DisableSecurityBypass Prevent the user from bypassing certain security warnings. DisableSetDesktopBackground Disable the menu command Set as Desktop Background for images. DisableSystemAddonUpdate Prevent the browser from installing and updating system add-ons. DisableTelemetry Turn off Telemetry. DisableThirdPartyModuleBlocking Prevent the user from blocking third-party modules that get injected into the Firefox process. DisplayBookmarksToolbar Display the Bookmarks Toolbar by default. DisplayMenuBar Display the Menu Bar by default. DNSOverHTTPS Configure DNS over HTTPS. DontCheckDefaultBrowser Disable check for default browser on startup. DownloadDirectory Set and lock the download directory. EnableTrackingProtection Enable or disable Content Blocking and optionally lock it. EncryptedMediaExtensions Enable or disable Encrypted Media Extensions and optionally lock it. ExemptDomainFileTypePairsFromFileTypeDownloadWarnings Disable warnings based on file extension for specific file types on domains. Extensions Install, uninstall or lock extensions. The Install option takes URLs or paths as parameters. The Uninstall and Locked options take extension IDs. ExtensionSettings Manage all aspects of extension installation. ExtensionUpdate Enable or disable automatic extension updates. FirefoxHome Configure Firefox Home. FirefoxSuggest Configure Firefox Suggest. GoToIntranetSiteForSingleWordEntryInAddressBar Force direct intranet site navigation instead of searching when typing single word entries in the address bar. Handlers Configure default application handlers. HardwareAcceleration If false, turn off hardware acceleration. Homepage Set and optionally lock the homepage. HttpAllowlist Origins that will not be upgraded to HTTPS. HttpsOnlyMode Allow HTTPS-Only Mode to be enabled. InstallAddonsPermission Allow certain websites to install add-ons. LegacyProfiles Disable the feature enforcing a separate profile for each installation. LegacySameSiteCookieBehaviorEnabled Enable default legacy SameSite cookie behavior setting. LegacySameSiteCookieBehaviorEnabledForDomainList Revert to legacy SameSite behavior for cookies on specified sites. LocalFileLinks Allow specific websites to link to local files. ManagedBookmarks Configures a list of bookmarks managed by an administrator that cannot be changed by the user. ManualAppUpdateOnly Allow manual updates only and do not notify the user about updates. MicrosoftEntraSSO Allow single sign-on for Microsoft Entra accounts. NetworkPrediction Enable or disable network prediction (DNS prefetching). NewTabPage Enable or disable the New Tab page. NoDefaultBookmarks Disable creation of the default bookmarks bundled with Firefox, and the Smart Bookmarks (Most Visited, Recent Tags). Note: this policy is only effective if used before the first run of the profile. OfferToSaveLogins Enforce the setting to allow Firefox to offer to remember saved logins and passwords. Both true and false values are accepted. OfferToSaveLoginsDefault Set the default value for allowing Firefox to offer to remember saved logins and passwords. Both true and false values are accepted. OverrideFirstRunPage Override the first run page. Set this policy to blank if you want to disable the first run page. OverridePostUpdatePage Override the post-update “What’s New” page. Set this policy to blank if you want to disable the post-update page. PasswordManagerEnabled Enable saving passwords to the password manager. PasswordManagerExceptions Prevent Firefox from saving passwords for specific sites. PDFjs Disable or configure PDF.js, the built-in PDF viewer in Firefox. Permissions Configure permissions for camera, microphone, location, notifications, and autoplay. PictureInPicture Enable or disable Picture-in-Picture. PopupBlocking Allow certain websites to display popups by default. PostQuantumKeyAgreementEnabled Enable post-quantum key agreement for TLS. Preferences Set and lock the value for a subset of preferences. PrimaryPassword Require or prevent using a Primary Password. PrintingEnabled Enable or disable printing. PrivateBrowsingModeAvailability Set availability of private browsing mode. PromptForDownloadLocation Ask where to save files when downloading. Proxy Configure proxy settings. RequestedLocales Set the list of requested locales for the application in order of preference. SanitizeOnShutdown Clear navigation data on shutdown. SearchBar Set the default location of the search bar. The user is still allowed to customize it. SearchEngines Configure search engine settings. This policy is only available on the Extended Support Release (ESR) version. SearchSuggestEnabled Enable or disable search suggestions. SecurityDevices Add or delete PKCS #11 modules. ShowHomeButton Show the home button on the toolbar. SkipTermsOfUse Do not display the Terms of Use and Privacy Notice upon startup. You represent that you accept and have the authority to accept the Terms of Use on behalf of all individuals to whom you provide access to this browser. SSLVersionMax Set the maximum SSL version. SSLVersionMin Set the minimum SSL version. StartDownloadsInTempDirectory Force downloads to start off in a local, temporary location rather than the default download directory. SupportMenu Add a custom support menu item to the help menu. TranslateEnabled Enable or disable webpage translation. UserMessaging Don’t show certain messages to the user. UseSystemPrintDialog Print using the system print dialog. WebsiteFilter Block websites from being visited. See documentation for more details on the format. WindowsSSO and this Certificates ImportEnterpriseRoots true

So yeah we're on a Windows domain, but I'm the admin and I need to add a custom search engine and can't because "Your browser is being managed by your organization" basically neuters a ton of stuff.

I don't care, small office and I need control over FF. The help documentation I have seen are not even remotely clear. Is there a simple way to just LOSE this completely? I accept the risks, and not because we're lax on security but really need that custom search engine. Specifically, lose Google and replace with a Google search that strips out AI. The new Google search would be this:

https://www.google.com/search?q=%s&pws=0&gl=us&gws_rd=cr&udm=14

Dear Firefox team, I have one question only.

ARE YOU FUCKING INSANE? Can you STOP bombarding me with the notifications? This is MY DESKTOP, this is MY PC, I DON'T NEED this shit.

For anyone who would like to help:

No, there's no such option in settings. No, removing updater physically does not stop pop-ups. No, there's nothing in about:config to shut up the updates.

For Firefox team:

No, your updates ruin the browser, more and more, I think I'm about to switch to Pale Moon instead.