[
    {
        "role": "user",
        "content": "How%20can%20I%20configure%20thunderbird%20on%20windows%2011%20pro%20to%20only%20use%20mail%20and%20not%20calendar%20and%20other%20items%20and%20tabs%20as%20I%20am%20only%20interested%20in%20e-mail%20and%20news%20groups%20and%20nothing%20else%3F"
    },
    {
        "role": "assistant",
        "content": "Here are steps you can take to configure Thunderbird on Windows 11 Pro so that you're only using Mail and (optionally) News Groups, removing or hiding tabs/buttons for Calendar, Contacts, Chat, Tasks, etc. Use whichever combination of methods you prefer. I include both GUI options *and* editing CSS for deeper customization.\n\n---\n\n## 1. Unsubscribe / Remove Unused Calendar Accounts\n\nIf you have Calendar(s) set up:\n\n- Go to the **Calendar** tab (you can press `Alt + 3`).\n- In the left sidebar, locate any calendar(s) you don't use.  \n- Right-click \u2192 \u201cUnsubscribe\u201d or \u201cRemove\u201d to stop Thunderbird from trying to sync them. ([support.mozilla.org](https://support.mozilla.org/en-US/questions/1570594?utm_source=openai))\n\nThat stops calendar sources, but UI elements for calendar/other features may still show up.\n\n---\n\n## 2. Hide Calendar-related UI elements via CSS (userChrome.css)\n\nThis approach lets you hide buttons or tabs permanently from the UI.\n\n**Steps:**\n\n1. In Thunderbird, go to **Settings \u2192 General \u2192 Config Editor**.  \n   - Search for `toolkit.legacyUserProfileCustomizations.stylesheets`, and set it to **true** (toggle it). ([support.mozilla.org](https://support.mozilla.org/en-US/questions/1415717?utm_source=openai))\n\n2. Locate your Thunderbird profile folder:  \n   - Help \u2192 Troubleshooting Information \u2192 click \"Open Folder\" for \u201cProfile Directory.\u201d  \n\n3. Within your profile folder:  \n   - Create a folder named `chrome` (all lowercase).  \n   - Inside `chrome`, create a file called `userChrome.css`.  \n\n4. Edit `userChrome.css`. For example, to hide Calendar, Chat, Tasks, and Address Book buttons on the left-hand Spaces toolbar, you could add:\n\n   ```\n   /* Hide unwanted buttons on Spaces toolbar */\n   #calendarButton, #chatButton, #tasksButton, #addressBookButton { \n     display: none !important; \n   }\n\n   /* Optionally hide the Spaces Toolbar entirely: */\n   #spacesToolbar {\n     display: none !important;\n   }\n\n   /* Hide the Unified Toolbar (contains the search etc.) if desired */\n   #unifiedToolbarContainer {\n     display: none !important;\n   }\n   ```\n\n5. Save the file and **restart Thunderbird**.  \n\nWith these CSS rules in place, unused space/buttons should disappear. ([support.mozilla.org](https://support.mozilla.org/en-US/questions/1415717?utm_source=openai))\n\n---\n\n## 3. Remove or Disable \u201cSpaces\u201d Toolbar\n\nThunderbird 102+ introduced the **Spaces Toolbar** on the left side with icons for Mail, Calendar, Chat, Tasks, etc.:\n\n- To hide the entire Spaces toolbar:  \n  Go to **View \u2192 Toolbars** \u2192 uncheck **Spaces Toolbar**. This removes that bar from view. ([reddit.com](https://www.reddit.com/r/Thunderbird/comments/1b2vw3p?utm_source=openai))\n\n- If you want to leave the toolbar but remove individual buttons, use the `userChrome.css` method above. ([reddit.com](https://www.reddit.com/r/Thunderbird/comments/1qwhiru/how_to_remove_chat_tasks_and_calendar_from_sidebar/?utm_source=openai))\n\n---\n\n## 4. Stop Tabs You Don\u2019t Want (like Calendar, Preferences)\n\nThunderbird automatically opens certain items in tabs \u2014 like when you click Calendar, or open options/addons pages.\n\n- To reduce tab clutter: right-click an open tab \u2192 **\"Close Other Tabs\"**. That keeps only the tab(s) you need. ([support.mozilla.org](https://support.mozilla.org/en-US/questions/1072284?utm_source=openai))\n\n- Also, Thunderbird auto-hides the tab bar if there\u2019s only one tab open (so if you just stick to Mail, you\u2019ll only have one tab). ([blog.thunderbird.net](https://blog.thunderbird.net/2023/07/getting-started-with-the-main-window-of-thunderbird-115-supernova/?utm_source=openai))\n\n---\n\n## 5. News Groups\n\nIf you also use News Groups:\n\n- In **Account Settings**, you can setup or keep only your News accounts. Remove or disable any other account types you don\u2019t use.  \n\n- If you have orphaned News accounts or RSS/News Feeds you no longer need:  \n  - Unsubscribe or remove them from Feed Subscriptions.  \n  - If an entire News account is no longer needed, go into *Account Settings \u2192 the News account in the left panel* \u2192 at bottom: **Account Actions \u2192 Remove Account**. ([support.mozilla.org](https://support.mozilla.org/en-US/questions/1344325?utm_source=openai))\n\n---\n\n## 6. Optional: Adjust Other Behavior\n\n- If Thunderbird still syncs calendar information by default or shows notifications/reminders, disabling or removing all calendar sources should stop those.  \n\n- In **Settings \u2192 General**, you can also adjust behavior of mail (e.g. open messages in new window rather than tab) and disable features you don\u2019t use (chat, messaging, etc.).  \n\n---\n\nIf you tell me which exact version of Thunderbird you're using, I can give you tailor-made CSS snippets that match your version (sometimes selectors change). Do you want me to generate those for your version?"
    }
]