There are two different Firefox page zoom button add-ons available.
Page Zoom Button Zoom in, zoom out, and reset page zoom in Firefox with one toolbar button. More Information
Zoom Buttons 3 separate buttons to control the full page zoom feature in Firefox. More Information
Full Page Zoom Control
Page Zoom Button is a Firefox add-on that provides quick and easy control of Firefox's full page zoom feature. A single toolbar button allows you to zoom in, zoom out, and reset a web page back to its default view instantly. You can zoom in and out by either clicking on the button, or rolling the mouse wheel over it You can also use Page Zoom Buttons with Firefox's zoom support to zoom in and out of photos, graphics, and various documents that you may have on your computer locally and offline (just open them in Firefox).
Button Functions
Installing
Go to the Page Zoom Button page on the Firefox add-ons site. Click on the "Add to Firefox" button. Click on the "Install Now" button in the popup that appears then restart Firefox. After restarting Firefox, follow the instructions below to add the toolbar button to a toolbar.
Open the Customize Toolbar window: Right click on a toolbar > Customize > drag the "Zoom" button to a toolbar of your choice. or If the Firefox Menu Bar -is- showing, go to View > Toolbars > Customize > drag the "Zoom" button to a toolbar of your choice. If the Firefox Menu Bar -is not- showing, click on the Firefox button (top left of your browser), Options > Toolbar Layout > drag the "Zoom" button to a toolbar of your choice.
Get the Page Zoom Button add-on.
Full Page Zoom Buttons Zoom Buttons is also Firefox add-on that offers quick and easy control of Firefox's full page zoom feature. Three toolbar buttons are provided to zoom in, zoom out, and reset a web page back to its default view instantly. You can choose to use 1 button, or all 3 of them.
Buttons Zoom In button Zoom Out button Reset Zoom button
Go to the Zoom Buttons page on the Firefox add-ons site. Click on the "Add to Firefox" button. Click on the "Install Now" button in the popup that appears then restart Firefox. After restarting Firefox, follow the instructions below to add the toolbar button to a toolbar.
Open the Customize Toolbar window: Right click on a toolbar > Customize > drag the Zoom In, Zoom Out, and Reset buttons to a toolbar of your choice. or If the Firefox Menu Bar -is- showing, go to View > Toolbars > Customize > drag the Zoom In, Zoom Out, and Reset buttons to a toolbar of your choice. If the Firefox Menu Bar -is not- showing, click on the Firefox button (top left of your browser), Options > Toolbar Layout > drag the Zoom In, Zoom Out, and Reset buttons to a toolbar of your choice.
Get the Zoom Buttons add-on.
About Page Zoom Buttons The Page Zoom Buttons add-ons are a result of contributions from the following volunteers of the Access Firefox Project. Michael Buckley Lou Cypher Ken Saunders