Firefox release notes for developers

Below you'll find links to the developer release notes for every Firefox release. These lovingly-crafted notes provide details on what features and APIs were added and improved and what bugs were eliminated in each version of Firefox. All written to give developers like you the information they need most. You're welcome.

  1. Firefox 126 for developers
  2. Firefox 125 for developers
  3. Firefox 124 for developers
  4. Firefox 123 for developers
  5. Firefox 122 for developers
  6. Firefox 121 for developers
  7. Firefox 120 for developers
  8. Firefox 119 for developers
  9. Firefox 118 for developers
  10. Firefox 117 for developers
  11. Firefox 116 for developers
  12. Firefox 115 for developers
  13. Firefox 114 for developers
  14. Firefox 113 for developers
  15. Firefox 112 for developers
  16. Firefox 111 for developers
  17. Firefox 110 for developers
  18. Firefox 109 for developers
  19. Firefox 108 for developers
  20. Firefox 107 for developers
  21. Firefox 106 for developers
  22. Firefox 105 for developers
  23. Firefox 104 for developers
  24. Firefox 103 for developers
  25. Firefox 102 for developers
  26. Firefox 101 for developers
  27. Firefox 100 for developers
  28. Firefox 99 for developers
  29. Firefox 98 for developers
  30. Firefox 97 for developers
  31. Firefox 96 for developers
  32. Firefox 95 for developers
  33. Firefox 94 for developers
  34. Firefox 93 for developers
  35. Firefox 92 for developers
  36. Firefox 91 for developers
  37. Firefox 90 for developers
  38. Firefox 89 for developers
  39. Firefox 88 for developers
  40. Firefox 87 for developers
  41. Firefox 86 for developers
  42. Firefox 85 for developers
  43. Firefox 84 for developers
  44. Firefox 83 for developers
  45. Firefox 82 for developers
  46. Firefox 81 for developers
  47. Firefox 80 for developers
  48. Firefox 79 for developers
  49. Firefox 78 for developers
  50. Firefox 77 for developers
  51. Firefox 76 for developers
  52. Firefox 75 for developers
  53. Firefox 74 for developers
  54. Firefox 73 for developers
  55. Firefox 72 for Developers
  56. Firefox 71 for Developers
  57. Firefox 70 for developers
  58. Firefox 69 for developers
  59. Firefox 68 for developers
  60. Firefox 67 for developers
  61. Firefox 66 for developers
  62. Firefox 65 for developers
  63. Firefox 64 for developers
  64. Firefox 63 for developers
  65. Firefox 62 for developers
  66. Firefox 61 for developers
  67. Firefox 60 for developers
  68. Firefox 59 for developers
  69. Firefox 58 for developers
  70. Firefox 57 (Quantum) for developers
  71. Firefox 56 for developers
  72. Firefox 55 for developers
  73. Firefox 54 for developers
  74. Firefox 53 for developers
  75. Firefox 52 for developers
  76. Firefox 51 for developers
  77. Firefox 50 for developers
  78. Firefox 49 for developers
  79. Firefox 48 for developers
  80. Firefox 47 for developers
  81. Firefox 46 for developers
  82. Firefox 45 for developers
  83. Firefox 44 for developers
  84. Firefox 43 for developers
  85. Firefox 42 for developers
  86. Firefox 41 for developers
  87. Firefox 40 for developers
  88. Firefox 39 for developers
  89. Firefox 38 for developers
  90. Firefox 37 for developers
  91. Firefox 36 for developers
  92. Firefox 35 for developers
  93. Firefox 34 for developers
  94. Firefox 33 for developers
  95. Firefox 32 for developers
  96. Firefox 31 for developers
  97. Firefox 30 for developers
  98. Firefox 29 for developers
  99. Firefox 28 for developers
  100. Firefox 27 for developers
  101. Firefox 26 for developers
  102. Firefox 25 for developers
  103. Firefox 24 for developers
  104. Firefox 23 for developers
  105. Firefox 22 for developers
  106. Firefox 21 for developers
  107. Firefox 20 for developers
  108. Firefox 19 for developers
  109. Firefox 18 for developers
  110. Firefox 17 for developers
  111. Firefox 16 for developers
  112. Firefox 15 for developers
  113. Firefox 14 for developers
  114. Firefox 13 for developers
  115. Firefox 12 for developers
  116. Firefox 11 for developers
  117. Firefox 10 for developers
  118. Firefox 9 for developers
  119. Firefox 8 for developers
  120. Firefox 7 for developers
  121. Firefox 6 for developers
  122. Firefox 5 for developers
  123. Firefox 4 for developers
  124. Firefox 3.6 for developers
  125. Firefox 3.5 for developers
  126. Firefox 3 for developers
  127. Firefox 2 for developers
  128. Firefox 1.5 for developers

Whew! That's a lot of Firefoxen!