We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

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

Enlarging the text font in gmail

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

more options

How do I enlarge the font size in gmail? It was suddenly much smaller when I opened it a few days ago. I enlarged it to 18 in Preferences, but when I tried to increase the percentage of enlargement from 133%, it went back to the smaller size. Then the window for increasing percentages disappeared. I see a lot of people are complaining that their font size also spontaneously changed, usually to a smaller size. I am also visually impaired, so this is a real problem.

How do I enlarge the font size in gmail? It was suddenly much smaller when I opened it a few days ago. I enlarged it to 18 in Preferences, but when I tried to increase the percentage of enlargement from 133%, it went back to the smaller size. Then the window for increasing percentages disappeared. I see a lot of people are complaining that their font size also spontaneously changed, usually to a smaller size. I am also visually impaired, so this is a real problem.

All Replies (1)

more options

Check your zoom controls.

<Control> (Mac=<Command>) + (plus) enlarge - (minus) reduce 0 (zero) restore


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

If there is still a problem,

Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

While you are in Troubleshoot(Safe) mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}