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Zoom is a feature which allows you to increase or decrease either the size of a web page or the size of the text. This article explains how it works.

The zoom controls allow you to increase or decrease either the size of a whole web page or just the size of all the text in order to improve readability. We'll explain how it works. __TOC__ = Zoom in and out of a website = Here's how you can zoom in and out of individual websites. # Click the menu button [[Image:Fx89menuButton]] on the right. The Firefox menu will open, and you will see the zoom controls at the bottom. #;[[Image:Fx103MenuPanel]] # Use the {button +} button to zoom in, and the {button -} button to zoom out. The number in the middle is the current zoom level – click it to reset the zoom to the default zoom level. You can also see the current zoom level in the address bar: ;[[Image:Fx103addressBarZoomLevel]] {note}'''Keyboard shortcuts:''' You can also use the zoom controls without a mouse. Press and hold {for mac}{key Command}{/for}{for win,linux}{key Ctrl}{/for} while pressing {key &#43} to zoom in, {key -} to zoom out, or {key 0} to reset.{/note} The zoom level is saved per hostname, even after you close Firefox. For example, all pages on [https://support.mozilla.org support.mozilla.org] share the same zoom level setting, but it is different from the zoom level setting of the pages on [https://blog.mozilla.org blog.mozilla.org]. =Pinch to zoom= This feature allows users to zoom in and out of pages by using a pinch motion without affecting the layout of the page. The pinch action is currently supported on Windows through touchscreen and high precision touchpads, on Mac through touchpads and on Linux through touchscreens. Linux touchpads are currently unsupported, with support expected to be added in the future. = How to only change the size of the text = Instead of changing the size of everything, you can just change the size of the text. #{for win,linux}Press the {key Alt} key to temporarily bring up the traditional Firefox menu. {/for}On the menu bar at the top of the screen, click {menu View}, then go to {menu Zoom}. #Select {menu Zoom Text Only}. This makes the controls only change the size of text; not images. = Set a default zoom level for all websites = You can enlarge or reduce the size of all web content, as follows: # [[T:optionspreferences]] # In the {menu General} panel, go to the ''Language and Appearance'' section. #;[[Image:Fx100settings-LanguageAndAppearance]] # Under ''Zoom'', use the drop-down menu for '''Default zoom''' to select a zoom level for all pages. Firefox will still remember individual site zoom levels you set. #* To set a zoom level for text only, select the '''Zoom text only''' checkbox. # [[T:closeOptionsPreferences]] = Set a minimum text size= You can set Firefox to automatically display all text at a minimum font size. If a web page contains text that is smaller, Firefox increases the font size of the text to this minimum. # [[T:optionspreferences]] # In the {menu General} panel, go to the ''Language and Appearance'' section. # Under ''Fonts'', click {button Advanced…} #;[[Image:Fx100settings-FontsAdvanced]] # In the '''Minimum Font Size''' drop-down, select the minimum size in pixels in which all text must be displayed. # Click {button OK} to save your changes. For more information, see [[Change the fonts and colors websites use]]. <!-- {note}'''Alternate method:'''<br>If you can't access your font settings through the menu button: #[[T:aboutconfig]] #Search for the {pref font.minimum-size} preference and change the value to '''{pref 0}'''.{/note} -->