A+ FontSize Changer Pro icon

A+ FontSize Changer Pro

by jeffsbaker · seabreezecomputers.com · Education
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Extension that lets the user customize the font text size, font type, font color and background color on a page.

Users
199
+8 in 30 days
Rating
4.0 / 5
unchanged in 30 days
Ratings
18
0 in 30 days
Store rank
#64K
#53K among extensions
Version
1.5.1
updated 27 Dec 2022

Users

monthly, 3 years
50158265Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 199 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
51218Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 18 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About A+ FontSize Changer Pro

A+ FontSize Changer is a Chrome Extension and Edge Chromium add-on that lets the user customize the font text size, font text color, background color and font family on a page. It actually changes the fontSize of each element unlike Chrome's action with CTRL+ and CTRL- which zooms the page. Sometimes you wish to increase the text size without zooming the page so that paragraphs do not scroll past the edge of the screen. A+ FontSize Changer works where others fail! Even on pages with dynamic (ajax) content! Even on pages with iFrames! Just use the buttons to change the fontsize or use keyboard shortcuts ALT+ and ALT- ( or use ALT+Up Arrow and ALT+Down Arrow. You can change these hotkeys at chrome://extensions/shortcuts ) Some website authors use a gray text color instead of black which can be hard on the eyes. With A+ FontSize Changer you can also change the text color and background color on a page. With this feature you can also create your own custom Night Mode where you choose the text color and background color yourself and it does not invert image or video colors so that they are still viewable. NOTES: If ALT+ and ALT- are not working on a website then try these steps: 1. Reload the website (F5 key) or restart Chrome or Edge. 2. Click on a blank space on the website page before using the ALT+ or ALT- key. 3. Extensions are not allowed to work at Chrome Web Store, Edge Add-ons store or a chrome:// or edge:// page including the new tab page. 4. If the website has disabled keyboard keys then click on the extension icon in the toolbar and use the buttons there. 5. If ALT+Up Arrow and ALT+Down Arrow are not working then see if they are active on the extension at chrome://extensions/shortcuts PRO FEATURES: (Available for purchase) * Create profiles to save text settings and color schemes. * Saves custom font type for each website you visit * Saves custom text size for each website you visit * Saves custom text color for each website you visit * Saves custom background color for each website you visit VERSION HISTORY 12/25/2022 - Version 1.5.1 + Added "Blacklist" for locked profiles so that users can add websites that will not be changed by the profile that is checked. + Grammar correction: from "it's" to "its". + Fixed bug of font-family not loading a profile with "Load" button until page was reloaded. 8/20/2022 - Version 1.5.0 + Updated to Manifest V3 + Checked (or locked) profiles no longer save the values to each website so that you can uncheck the profile and those websites will default to normal. 8/19/2022 - Version 1.4.9 + Performance improvements + Extension badge now displays if the user has changed the font color, background-color, font-family or as usual the font-size multiplier for a website. 9/7/2021 - Version 1.4.4 - Fixed some license issues. No longer puts gray translucent background under Youtube video controls. 4/7/2021 - Version 1.4.3 - Cosmetic changes. Changed buttons and input fields to use font-family: Consolas, monospace. Changed footer background color. Added German language. 3/4/2021 - Version 1.4.2 - Now displays a notice if the user did not allow the extension to use the user's email address to check for license status from Google's servers. Hopefully fixed it so that text size does not get larger than set size on some websites on page refresh because of slow loading external stylesheets or dynamic content. It will not work in all cases, otherwise the extension would have to be delayed for 10 seconds or more on some websites with many external resources. 2/16/2021 - Version 1.4.1 - Fixed a bug where the extension would not work when first installed on websites that were already open in the browser. Now it will work on a fresh install without refreshing the page. Also added better support for Edge Chromium browsers. 2/11/2021 - Version 1.4.0 - Fixed a bug in the license status check. It will now display an error message if the user did not approve access for the extension to check license status or if the user is not signed into Chrome and therefore the license status cannot be checked. 2/10/2021 - Version 1.3.9 - Fixed a bug from version 1.3.7 where backgrounds with url images with partial transparency would get a partial transparent background so that some video players like jw-player would not get the video blocked out. But the fix was being applied to the body tag as well. Fixed so that the body tag will always get a solid color and no transparency. Also added more error checking to license status check. 2/2/2021 - Version 1.3.8 - Added a filter to lower the brightness on page load for users that set the background-color to black or a dark color to try and prevent the original white background from showing. Unfortunately, it only works well some of the time. But the original white background is less bright more quickly than before. Also fixed a bug where Pro users that already paid were not getting the correct license. 1/31/2021 - Version 1.3.7 - A number of performance improvements. It should use less resources now. Added Dark Mode support for the A+ popup. Added colors for hyperlinks including visited hyperlinks being a different color! Also boxes and buttons that do not have a default white background will now have a slightly different color than the color chosen by the user so that boxes and buttons are easier to identify. Version 1.3.5 was not converting background colors for elements with full transparency but was still converting elements with partial transparency. Now it will convert colors but with the transparency value also saved with the conversion. Hopefully this will help some video players like jw-player controls that use alpha to display correctly. Also elements with IMG or background-image with url images will have a slightly different color background. This helps if the image has a transparent background and a dark icon such as icons and the user has selected a black background color. IMPORTANT UPDATE: Chrome Web Store Pay…

Growth

WindowUsersChangeRatingsRating
7 days−1−0.5%00.00
30 days+8+4.2%00.00
6 months+14+7.6%00.00
1 year−14−6.6%+1+0.06

Version history

10 versions recorded
1.5.126 Dec 2022
1.5.025 Aug 2022
1.4.48 Sep 2021
1.4.25 Mar 2021
1.4.116 Feb 2021
1.4.014 Feb 2021
1.3.910 Feb 2021
1.3.83 Feb 2021

Details

Category
Education
First seen
23 May 2020
Size
104 KB
Languages
de, en, es, fr, it, pt-BR, pt-PT, zh-CN
Pricing
Free
Privacy policy
seabreezecomputers.com
Support
seabreezecomputers.com
Extension ID
gfeeeakhmddjjoabimgdikidjhdegidi

Permissions and risk

Moderate riskimpact 3, likelihood 1
Permissions
scriptingidentityidentity.emailtabsstorageunlimitedStorageactiveTab
Site access
*://www.seabreezecomputers.com/**://seabreezecomputers.com/**://192.168.1.5/*<all_urls>
Can read and change data on every website you visit.

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