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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.

Hello:

When I signed into my computer this morning, a pop-up asked me if I wanted Firefox to update. I let it do that, and then a pop-up came up letting choose among some photos and art for a desktop background. It even let me upload a photo of mine. I chose one of yours, now I can't change to any other photo I have on my computer. Please help.

Thank you,

Cynthia M.

I have a laptop with windows 10 & Thunderbird 128.9.1 and a Samsung S10 using the Samsung email. Both are configured with IMAP. When I open the Samsung email to view and download emails, I can then get home and open my laptop with Thunderbird where it will also download.

If I were to log onto the Gmail through a web browser the email will show in the "all mail" label and no longer be in the inbox, unless I do the phone first and it stays in the inbox until downloaded on the laptop.

so I can't get it on the phone if the laptop is used first. Any ideas ? because logging on to Gmail through the web browser to forward it myself is a pain thanks in advance Mick

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

While using Debian 12 on two workstations running version 136 the "update available" would appear on the screen and remain on the screen with no option to update or cancel.

Because this happened on 2 Debian 12 workstations, i would like to know if this is a known problem as I updated 139.01 an the issue continues.

You will noticed in the screen capture update available has no options other than "learn more"

I recently installed Thunderbird on a new Windows 11 PC. I am using Thunderbird 128.11.0esr on another machine and it works properly. I attempted to clone my 128 setup onto the new machiine by copying the Profile folder without success. Some settings were transferred, enough so that the inbox was filling with my emails. I tried to send a message. It failed with the message: "Sending of the message failed The message could not be send because the connection to Outgoing server (SMTP) smtp.gmail.com times out. Try again" As far as I can tell the SMPT server settings are exactly the same on the two setups: Description: Gmail Port: 587 Connection security: STARTTLS Authentication methon: OAuth2 Username TMerrillH Sending GMail using the GMail app works properly. Could it be something in the OAuth2 system?

I can't seem to get the search message window to shrink down with the right click commands, nor with the arrows at the edges of the window, this has been going on since the beginning of 128 . . .

Unable to receive new emails sending works fine. Receiving emails works with no security but do not wish to continue with this mode. No errors for ssl/tls, just doesn't receive emails. I tried switching to oAuth2 but no go either. Version: 128.10.2esr. This started on the 21st of May.

I've been having issues with search bar suggestions, in particular a site which used to be in my bookmarks but has since been removed. I always use Firefox in private mode, so no history is saved either. In my search bar suggestions I allow bookmarks since there are several sites I often visit. (Also please don't visit the site, it's not a good one) Even so this particular site keeps showing up in the search bar suggestions, with no other trace of it elsewhere. I hope I could get some answers to this issue

Images in order - empty browsing history, no bookmarks of the particular site, bookmarks working properly, the search suggestion, and my search settings

Group contacts have been established and the group is listed in the Address page. An email is prepared and the group name is inserted in the bcc slot. An x appears to the left of the group name. The Send button is grayed out and the email can't be sent. What is the problem?

Version 128.11.0esr (64-bit) Tbird won't download emails from server. I get a bunch of status messages at the bottom left of the screen: looking up server, connecting, checking server capabilities, etc, then everything just stops. No downloads. If I access this account via webmail, there *are* emails there that Tbird just won't download. No error messages of any kind, just those status messages in that bar along the bottom of the window. All appears well... but no messages.

On the sending sider, I can't send anything from the account either (image attached.) So there appears to be both a connection error (sending) and NO connection error (receiving.) Got me chasing my own tail in circles - - tried a couple of different email apps and they're all working as they should, same settings, both send and receive. I've never used anything other than Thunderbird and REALLY don't want to change, but if it isn't working, looks like I'll have to, like it or not. Any ideas gratefully received!

Got upgraded to windows 11. Very frequently when I try and open a tab with Firefox, I can't open it. It's running, but stuck minimized. I can see the little mini version of it when i mouse over the shortcut on my taskbar. I've followed instructions of people who have also had this problem. I've deleted and renamed xulstore. The only thing that ever solves the problem when it comes up (which is often) is trying to uninstall firefox and then refreshing it instead.

This is kind of untenable though because I'd really rather not reinstall my plugins every day and get logged out of everything. What should I do to make this problem go away forever without constantly having to take time and reset firefox

I'm unable to access GroupOn from my laptop while using FireFox browser. When I attempt to log on using my Email user name, a message that states "ACCESS DENIED" appears. I have followed the steps to clear the cache but doesn't correct this issue. I'm able to access using my email user name using an alternative browser but I prefer FireFox. Currently running Windows 10. I receive emails from GroupOn using the same account that I attempt to log on with and receive the "ACCESS DENIED" response. Any knowledge would be appreciated

Move Thunderbird data to a new computer

I have the complete Thunderbird folder with 15 years of POP mail.

Install Thunderbird on new PC and overwrite the complete folder?

will be the same version of thunderbird.