Using Tools/Options/Display doesn't do it. That only seems to change the font in the message bodies. Look for the 'Theme Font Size Changer' add-on. It does the same job as messing with CSS files with more ease and choice in style, font and size. James Moe jmm-list at sohnen-moe dot com 0. Go to advanced preferences in Thunderbird and click on Config Editor. Find “font.size.systemFontScale” and adjust the scale (do so.gradually.! Try maybe 10-15 increase/decrease at a time until you get to where you want. Changes will show when you close the Mail window and reopen it (or restart Thunderbird).
Thunderbird uses a default font size of 8
to display the text of folders names and message subject lines. You can increase the size of the font to create a larger display of the same messages by adding a little text file to your profile.
So if your eyes could use a break from small print, give this tip a try:
- Open any of these programs (NotePad, WordPad or DreamWeaver)
- Make a new file containing the text shown below:
- Go to File→Save As... and name your file
userChrome.css
. - Next, go to C:Documents and Settings_[yourusername]_Application DataThunderbirdProfiles
- There, you'll find a folder with the ending
.default
; click on this folder. - In the
.default
folder, create a new folder calledchrome
. - Double click to open the
chrome
folder. - Copy or move your newly created
userChrome.css
file into the chrome folder. - Finally, open Thunderbird. Your messages will display in the revised font size.
Change Font Size In Thunderbird Inbox
IconHint: If the font size is too large or too small, you can use NotePad or WordPad to easily change the font size. Note that the file shown here contains font-size: 10pt
, but you can simply increase or decrease the number as needed.
Tip: If you are proficient with CSS, have DreamWeaver, and would like to make other changes, you can make other edits like changes to font family, changes to font color, or more advanced tweaks like these: http://lifehacker.com/301520/best-firefox-userchromecss-tweaks and http://lifehacker.com/197715/customize-firefox-with-userchromecss
Change Font Size In Thunderbird Inbox Mail
Thanks to Sandy Ball and Nikki Massaro Kauffman for this handy tip!