* Copy everything - all the text between lines below and paste it into the Notepad document. * Create new folder and call it '''chrome''' note the spelling - use a lower case 'c' It should be in the same place as the 'Mail' folder. * Close Thunderbird now - this is important. Read this answer in context 👍 2 All Replies (20) Note the spelling all lower case except for the 'C'. Save the document as filename userChrome.css in the ' chrome' folder.If this proves to be too small you can edit the 14px to say 16px etc *Make all the default font sizes eg:14 px: * Do not remove the line - it's required for correct url(' ') Copy everything - all the text between lines below and paste it into the Notepad document.

Create new folder and call it chrome note the spelling - use a lower case 'c' It should be in the same place as the 'Mail' folder.Close Thunderbird now - this is important.There is a way to enlarge fonts size in Folder Pane, Message List etcĪ new window opens showing the contents of your Profile folder. I use 1920 x 1080 and everything looks ok. Note: If you are using a screen resolution that is large eg: lots of pixels per inch/cm then everything on desktop will appear smaller.

Make text larger windows 7