This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How can I undo the effect of hitting "ctrl + shift + ="?

  • 3 replies
  • 1 has this problem
  • 3 views
  • Last reply by gild

illflux
illflux
more options

I was composing a message, and accidentally hit "ctrl + shift + =" (as I have a AutoHotKey script that uses a similar keyboard shortcut), and it increased the font size for the entire message (no text was selected in the message at the time I hit the shortcut). Now every message I compose or respond to has this increased font size by default, and I can't figure out how to undo this. I've played with the message formatting options and the display options in the Thunderbird "Options" menu, with no luck. I looked through the list of Thunderbird keyboard shortcuts to try to figure out what function this keyboard shortcut performs, but don't see any mention of "ctrl + shift + =" (or "ctrl + shift + +"). Can someone tell me how to undo this?

I was composing a message, and accidentally hit "ctrl + shift + =" (as I have a AutoHotKey script that uses a similar keyboard shortcut), and it increased the font size for the entire message (no text was selected in the message at the time I hit the shortcut). Now every message I compose or respond to has this increased font size by default, and I can't figure out how to undo this. I've played with the message formatting options and the display options in the Thunderbird "Options" menu, with no luck. I looked through the list of Thunderbird keyboard shortcuts to try to figure out what function this keyboard shortcut performs, but don't see any mention of "ctrl + shift + =" (or "ctrl + shift + +"). Can someone tell me how to undo this?

Chosen solution

On my computer if I have the cursor at the beginning of a new Write message - nothing typed. then use 'Ctrl' + '+', then all font is enlarged, but only for that email.

'Ctrl' + '-' reduces font.

Tools > Options > Display > formatting Font and size: This sets the display font and size and the Write window font and size.

Tools > Options > Composition > General HTML Font should say 'Variable width' and Size = medium.

Read this answer in context 👍 0

All Replies (3)

illflux
illflux Question owner
more options

Update - the formatting on new and replied messages has now switched back to "normal" font size (how it was before), without any action on my part. No idea what's going on here.

Toad-Hall
Toad-Hall
  • Top 10 Contributor
more options

Chosen Solution

On my computer if I have the cursor at the beginning of a new Write message - nothing typed. then use 'Ctrl' + '+', then all font is enlarged, but only for that email.

'Ctrl' + '-' reduces font.

Tools > Options > Display > formatting Font and size: This sets the display font and size and the Write window font and size.

Tools > Options > Composition > General HTML Font should say 'Variable width' and Size = medium.

gild
gild
more options

Additional info

These 'Windows' shortcuts will work inside text areas of Thunderbird messages. 'Ctrl' + '+' increases text size 'Ctrl' + '-' decreases text size 'Ctrl' + '0' (zero) reverts to default text size

They are separate from any Thunderbird settings, and only affect the 'display' on the users own computer. It does not change the text size inside the sent message. Even if no message is open, the sequence will be remembered and ALL your messages will be displayed with the new font-size settings when they are eventually opened.

This adjustment will persist until you cancel with 'Ctrl 0', or close Thunderbird.

Modified by gild