Morgan Reschenberg
Accessibility Platform Engineer
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolMorgan Reschenberg is an Accessibility Platform Engineer with a decade of experience, currently advancing inclusive browsing at Mozilla from San Francisco. They specialize in low-vision features, high-contrast support, and a major overhaul of VoiceOver on macOS, plus caching the accessibility tree to improve Firefox performance. An active contributor to the Gecko codebase, Morgan’s work includes optimizing announcement handling and viewport/offscreen calculations that materially improve screen reader interaction and pinch-zoom accessibility. They combine hands-on engineering with mentorship and standards engagement via the CSS Working Group, reflecting a blend of product-facing impact and protocol-level influence. As a UC Berkeley CS alum passionate about STEM education, Morgan brings both technical depth and a sustained commitment to widening access in computing.
10 years of coding experience
BA, Computer Science, STEM Education, Junior, BA, Computer Science, STEM Education, Junior at University of California, BerkeleyGeneral Education, General Education at Merced CollegeEngineering, General Education, Engineering, General Education at Buhach Colony High School
Spanish, American Sign Language
Github Skills (14)
accessibility10
acessibility10
c-language10
acc10
cprogramming-language10
gecko10
accessibilityservice10
performance-analysis8
performance-monitor8
performance-analytics8
profiling8
code-profiling8
performance-monitoring8
javascript5
Programming languages (14)
Github contributions (5)
mozilla/gecko-dev
May 2018 - Jan 2023
SUPERSEDED by https://github.com/mozilla-firefox/firefox. Read-only Git mirror of the Mercurial gecko repositories at https://hg.mozilla.org
Role in this project:
Accessibility Specialist
Accessibility SpecialistContributions:387 commits in 4 years 8 months
Contributions summary:Morgan's contributions center around improving accessibility within the Mozilla Gecko rendering engine, specifically focusing on the a11y subsystem. They've modified code related to announcement notifications and their handling within the accessibility framework, optimizing how VoiceOver (VO) interacts with the browser. Several commits address viewport handling, caching, and offscreen state calculations, which are vital for accessible experiences with pinch-zooming and scrolling. The user also added performance markers to measure the time taken by several key a11y functions.
firefoxgit-mirrormercurialmozilla-firefox
MReschenberg/MReschenberg.github.io
Feb 2016 - Aug 2025
Contributions:4 PRs, 160 pushes, 5 branches in 9 years 7 months
descriptions
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