Hi, did you already try this change on the Settings page? Either:

• "3-bar" menu button (or Tools menu) > Settings (previously "Options")
• type or paste about:preferences into the address bar and press Enter/Return to load it

In the search box at the top of the page, type update and Firefox should filter to the relevant section.

Select "Check for updates but let you choose to install them"

Now Firefox will show a little panel near the menu button when an update is available and you can install it or snooze it for later.

(The attached screenshot is from Firefox 98, so apologies for any minor discrepancies.)

Also, if you had a problem with everything getting huge in Firefox 103, here's the story:

Firefox 103 now applies the Windows "Make text bigger" setting as a zoom multiplier (Release Notes).

Your options:

(A) If you do not need "Make text bigger" for other applications, the simplest thing you can do is reset that to 100% to resolve the issue:

(B) Firefox 103 has 3 interrelated hidden settings that control the overall zoom level and whether it considers information from the system. This one seems to be working for many people to revert the change:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.

(2) In the search box in the page, type or paste ui.textScaleFactor and pause while the list is filtered.

Normally, Firefox will display a bar with Boolean Number String and a plus button. If Firefox displays a row that already has a number value, skip to step 5.

(3) Click the circular button in front of Number and then click the + button to create a new preference. (See composite screenshot below.)

(4) Firefox should display an editing field, and show a value of 0 -- edit the value to 100 then press Enter or click the blue check mark button to save the change.

(5) If the current value of ui.textScaleFactor is NOT 100, then double-click the preference to display an editing field, and change the value to 100 then press Enter or click the blue check mark button to save the change.

how do I stop update to 103

My first reply has the setting to control when you update. That's not working?

seems most have a larger screen issue mine is that every add-on extension crashing after a few min and running latest of them all according to the update in settings started with the 102 already that extensions would lag out often with the firfox warning it is slowing down the browser do you want to stop it ..... while the same extensions run perfect on the chrome browser (what i hate to use ) seems Firefox pushing people to chrome!