Application Basics

   Name: Thunderbird
   Version: 38.3.0
   User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
   Profile Directory: Open Directory

             (Local drive)
   Application Build ID: 20151014155852
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

 Mail and News Accounts
   account1:
    <REMOVED>

   account2:
     <REMOVED>

 Extensions
   Lightning, 4.0.3, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
   Messaging Menu and Unity Launcher integration, 1.3.1, true, messagingmenu@mozilla.com
   Provider for Google Calendar, 1.9, true, {a62ef8ec-5fdc-40c2-873c-223b8a6925cc}

 Important Modified Preferences

   Name: Value

     browser.cache.disk.capacity: 358400
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     extensions.lastAppVersion: 38.3.0
     mail.openMessageBehavior.version: 1
     mailnews.database.global.datastore.id: 743d42a2-62c2-4bfd-abeb-42cfe664a9b
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1447039542
     places.history.expiration.transient_current_max_pages: 104858
     plugin.importedState: true

 Graphics

     Adapter Description: Intel Open Source Technology Center -- Mesa DRI Intel(R) Ivybridge Mobile
     Vendor ID: Intel Open Source Technology Center
     Device ID: Mesa DRI Intel(R) Ivybridge Mobile
     Driver Version: 3.0 Mesa 11.0.2
     WebGL Renderer: false
     GPU Accelerated Windows: 0

     AzureCanvasBackend: cairo
     AzureSkiaAccelerated: 0
     AzureFallbackCanvasBackend: none
     AzureContentBackend: cairo

 JavaScript

 Incremental GC: 1

 Accessibility

   Activated: 0
   Prevent Accessibility: 0

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.10.8
     4.10.8

     NSS
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS Util
     3.19.2
     3.19.2

     NSS SSL
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS S/MIME
     3.19.2 Basic ECC
     3.19.2 Basic ECC

See image, I do not have anything I can choose in the menu on whether or not I want to show the remote content. If I hover the mouse on the edges of the drop down menu, I do not have any options on expanding its' size either. https://support.cdn.mozilla.net/media/uploads/images/2015-11-09-10-25-15-9edaac.png Here is the troubleshooting info in case it helps.. Application Basics Name: Thunderbird Version: 38.3.0 User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 Profile Directory: Open Directory (Local drive) Application Build ID: 20151014155852 Enabled Plugins: about:plugins Build Configuration: about:buildconfig Memory Use: about:memory Mail and News Accounts account1: <REMOVED> account2: <REMOVED> Extensions Lightning, 4.0.3, true, {e2fda1a4-762b-4020-b5ad-a41df1933103} Messaging Menu and Unity Launcher integration, 1.3.1, true, messagingmenu@mozilla.com Provider for Google Calendar, 1.9, true, {a62ef8ec-5fdc-40c2-873c-223b8a6925cc} Important Modified Preferences Name: Value browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false extensions.lastAppVersion: 38.3.0 mail.openMessageBehavior.version: 1 mailnews.database.global.datastore.id: 743d42a2-62c2-4bfd-abeb-42cfe664a9b network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1447039542 places.history.expiration.transient_current_max_pages: 104858 plugin.importedState: true Graphics Adapter Description: Intel Open Source Technology Center -- Mesa DRI Intel(R) Ivybridge Mobile Vendor ID: Intel Open Source Technology Center Device ID: Mesa DRI Intel(R) Ivybridge Mobile Driver Version: 3.0 Mesa 11.0.2 WebGL Renderer: false GPU Accelerated Windows: 0 AzureCanvasBackend: cairo AzureSkiaAccelerated: 0 AzureFallbackCanvasBackend: none AzureContentBackend: cairo JavaScript Incremental GC: 1 Accessibility Activated: 0 Prevent Accessibility: 0 Library Versions Expected minimum version Version in use NSPR 4.10.8 4.10.8 NSS 3.19.2 Basic ECC 3.19.2 Basic ECC NSS Util 3.19.2 3.19.2 NSS SSL 3.19.2 Basic ECC 3.19.2 Basic ECC NSS S/MIME 3.19.2 Basic ECC 3.19.2 Basic ECC