FontFlex: Fonts for Safari
Developed by Sufiyan Yasa · Version 4.10.4 (43.1 MB)
Screenshots & Interface
About
Why Install FontFlex: Fonts for Safari on Safari?
Customize web typography, replace fonts and adjust line heights effortlessly.
Full support for standard GM_* APIs (GM_xmlhttpRequest, GM_setValue, GM_addStyle)
Seamless one-click script installation directly from Greasy Fork and GitHub
Cross-device sync via iCloud Keychain for instant setup across Mac, iPhone, and iPad
Does This Extension Fit Your Workflow?
✓ Best Suited For
Power tinkerers who want to bypass website anti-copy restrictions, beautify GitHub, or automate routine tasks.
⚠️ Who Might Skip
Users who prefer zero-configuration out-of-the-box browser setups without managing script sources.
What's New in Version v4.10.4
What Real Users Say About FontFlex: Fonts for Safari
Authentic feedback and real-world ratings from Mac & iOS users
Stopped working
"I rely on this app to help me read websites with OpenDyslexic font and now it’s not working."
So broken. Fake reviews. 25/year. No thanks.
"So broken. Fake reviews. 25/year. No thanks."
Great!!
"Amazing!!!"
SuperSerial
"This font app is great for changing fonts in your browser and apps. You have a fall-back font to use that can be selected in case the font or site doesn’t accept the chosen font. There Many options to chose from to set parameters for your font! So, far it is working as described. The developer is helpful with any problems."
Got Questions About FontFlex: Fonts for Safari?
Q.Is FontFlex: Fonts for Safari free, or does it require a subscription?
FontFlex: Fonts for Safari is 100% free to download on the Apple App Store without predatory weekly subscription traps. You can install and use it across your Mac and iPhone Safari browsers.
Q.How do I enable FontFlex: Fonts for Safari in macOS and iOS Safari?
On Mac (macOS): After downloading from the Mac App Store, open the application once, then launch Safari -> click "Settings" (or Preferences) in the menu bar -> select the "Extensions" tab -> locate "FontFlex: Fonts for Safari" and check the box to enable it. On iPhone/iPad (iOS): Go to iOS "Settings" -> tap "Safari" -> tap "Extensions" -> select "FontFlex: Fonts for Safari" and toggle it ON.
Q.Are GreasyFork and GitHub scripts compatible with Safari on iOS and iPadOS?
Yes! Modern Safari extensions leverage WebKit Content World isolation, allowing full user script execution on mobile iOS Safari, turning your iPhone and iPad into desktop-grade workstations.
Q.Will running multiple user scripts cause web pages to stutter?
Not unless a script uses poorly constructed endless loops. Safari isolates scripts in separate execution contexts, preventing individual script crashes from bringing down the entire browser tab.
Maximize Your Productivity on macOS & iOS
Always inspect user scripts from untrusted sources before granting cross-origin network (GM_xmlhttpRequest) privileges.
FontFlex: Fonts for Safari Quality & Health Audit
Evaluated across verified App Store reputation, pricing ethics, update cadence, and native footprint.
★ 4.5 / 5.0 with 224 verified reviews
100% Free Download
v4.10.4 - Actively Maintained
43.1 MB package size, Official developer site
Technical Specifications & App Store Metadata
Help fellow Mac & iOS users discover clean tools
Copy the pitch or share directly with one click to social media.
Looking for a Safari alternative to FontFlex?
FontFlex: Fonts for Safari is the premier 1-to-1 Safari replacement for Chrome's FontFlex, saving battery and system RAM.
Similar Safari Extensions You Might Like
Explore more verified tools in the tweaks category
Automatically redirects Google AMP links to regular normal web pages.
Modern userscript manager optimized for both iOS and macOS Safari.
Stops web pages from disabling copy/paste, context menus, and hijacking shortcuts.