Issues

• Feature request: configurable width in hex editor

  enhancement
  Feature

  TASEmulators/fceux#854 · Filter by author amgleitman opened on Oct 17, 2026

• Windows Event Viewer reports numerous side-by-side error events linked to FCEUX while program is not running

  Win32
  TASEmulators/fceux#852 · Filter by author ghramsey opened on Sep 16, 2026

• FCEUX can't properly handle "Open ROM" dialog while playing with gamepad

  enhancement
  Feature

  TASEmulators/fceux#847 · Filter by author Pehat opened on Jul 11, 2026

• Title: 3GO.nes (Sangokushi / 三国志中原之霸者) displays incorrectly — iNES header declares Mapper 0, actual hardware is Mapper 252

  TASEmulators/fceux#845 · Filter by author 893212756 opened on Jun 6, 2026
  4

• Title: 3GO.nes (Sangokushi / 三国志中原之霸者) displays incorrectly — iNES header declares Mapper 0, actual hardware is Mapper 252

  TASEmulators/fceux#844 · Filter by author 893212756 opened on Jun 6, 2026

• config file does not save/does not load

  TASEmulators/fceux#842 · Filter by author bobbobbin opened on May 27, 2026
  2

• Various Requests

  TASEmulators/fceux#836 · Filter by author ReyVGM opened on Apr 19, 2026
  2

• Would it be possible to create an FCEUXD core for Retroarch, specifically for Android?

  TASEmulators/fceux#833 · Filter by author elseniorx1989 opened on Mar 31, 2026
  1

• "LCD Zapper" input switches to "Zapper" everytime.

  TASEmulators/fceux#828 · Filter by author Xcorp1on opened on Mar 12, 2026

• Integrate Kaillera netplay functionality

  TASEmulators/fceux#826 · Filter by author kewosad opened on Mar 7, 2026

• Feature request: Fullscreen without resolution change, trouble with 4K display

  TASEmulators/fceux#824 · Filter by author MaximilianC opened on Jan 15, 2026

• Lua scripting incompatibility between Linux / Windows versions

  TASEmulators/fceux#822 · Filter by author Xkeeper0 opened on Jan 10, 2026

• VRC7 audio saves

  TASEmulators/fceux#821 · Filter by author ajp9 opened on Nov 12, 2025

• Change CNRom bank switching or new submapper

  TASEmulators/fceux#819 · Filter by author Fixatron opened on Nov 2, 2025
  2

• Linux theme selection causes immediate crash if gtk2 picked

  TASEmulators/fceux#818 · Filter by author Xkeeper0 opened on Oct 26, 2025
  2

• Ending text issues in Rockball (mapper 141/Sachen 8259A)

  TASEmulators/fceux#810 · Filter by author kage2051 opened on Sep 21, 2025
  1

• Documentation on input presets inconsistent with software

  TASEmulators/fceux#809 · Filter by author oridotart opened on Sep 15, 2025

• Option whether to save emulation speed (globally or each game)

  Feature

  TASEmulators/fceux#800 · Filter by author Alyaqdhans opened on Jul 30, 2025

• FCEUX unexpectedly quits on Mac

  TASEmulators/fceux#799 · Filter by author idontknowhowtocodeAAAA opened on Jul 22, 2025
  4

• FCEUX crashes seemingly at random

  TASEmulators/fceux#798 · Filter by author Yoav-Morag opened on Jun 26, 2025
  1

• Family BASIC Keyboard flag is not functional

  TASEmulators/fceux#797 · Filter by author TeamPuzel opened on Jun 8, 2025
  3

• Newly released Populous ROM has bad graphics

  TASEmulators/fceux#787 · Filter by author awjackson opened on Mar 24, 2025

• Feature Request: command line fullscreen and lua autostart

  Feature

  TASEmulators/fceux#783 · Filter by author r57zone opened on Mar 3, 2025
  5

• Translation system

  enhancementQtSDL
  TASEmulators/fceux#779 · Filter by author yeager opened on Jan 25, 2025

• One of the useful CDL features was considered a bug and was "fixed"

  TASEmulators/fceux#771 · Filter by author cyneprepou4uk opened on Dec 2, 2024
  1