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 157 (Nightly)
2. Firefox 156 (Beta)
3. Firefox 155 (Stable)
4. Firefox 154
5. Firefox 153
6. Firefox 152
7. Firefox 151
8. Firefox 150
9. Firefox 149
10. Firefox 148
11. Firefox 147
12. Firefox 146
13. Firefox 145
14. Firefox 144
15. Firefox 143
16. Firefox 142
17. Firefox 141
18. Firefox 140
19. Firefox 139
20. Firefox 138
21. Firefox 137
22. Firefox 136
23. Firefox 135
24. Firefox 134
25. Firefox 133
26. Firefox 132
27. Firefox 131
28. Firefox 130
29. Firefox 129
30. Firefox 128
31. Firefox 127
32. Firefox 126
33. Firefox 125
34. Firefox 124
35. Firefox 123
36. Firefox 122
37. Firefox 121
38. Firefox 120
39. Firefox 119
40. Firefox 118
41. Firefox 117
42. Firefox 116
43. Firefox 115
44. Firefox 114
45. Firefox 113
46. Firefox 112
47. Firefox 111
48. Firefox 110
49. Firefox 109
50. Firefox 108
51. Firefox 107
52. Firefox 106
53. Firefox 105
54. Firefox 104
55. Firefox 103
56. Firefox 102
57. Firefox 101
58. Firefox 100
59. Firefox 99
60. Firefox 98
61. Firefox 97
62. Firefox 96
63. Firefox 95
64. Firefox 94
65. Firefox 93
66. Firefox 92
67. Firefox 91
68. Firefox 90
69. Firefox 89
70. Firefox 88
71. Firefox 87
72. Firefox 86
73. Firefox 85
74. Firefox 84
75. Firefox 83
76. Firefox 82
77. Firefox 81
78. Firefox 80
79. Firefox 79
80. Firefox 78
81. Firefox 77
82. Firefox 76
83. Firefox 75
84. Firefox 74
85. Firefox 73
86. Firefox 72
87. Firefox 71
88. Firefox 70
89. Firefox 69
90. Firefox 68
91. Firefox 67
92. Firefox 66
93. Firefox 65
94. Firefox 64
95. Firefox 63
96. Firefox 62
97. Firefox 61
98. Firefox 60
99. Firefox 59
100. Firefox 58
101. Firefox 57
102. Firefox 56
103. Firefox 55
104. Firefox 54
105. Firefox 53
106. Firefox 52
107. Firefox 51
108. Firefox 50
109. Firefox 49
110. Firefox 48
111. Firefox 47
112. Firefox 46
113. Firefox 45
114. Firefox 44
115. Firefox 43
116. Firefox 42
117. Firefox 41
118. Firefox 40
119. Firefox 39
120. Firefox 38
121. Firefox 37
122. Firefox 36
123. Firefox 35
124. Firefox 34
125. Firefox 33
126. Firefox 32
127. Firefox 31
128. Firefox 30
129. Firefox 29
130. Firefox 28
131. Firefox 27
132. Firefox 26
133. Firefox 25
134. Firefox 24
135. Firefox 23
136. Firefox 22
137. Firefox 21
138. Firefox 20
139. Firefox 19
140. Firefox 18
141. Firefox 17
142. Firefox 16
143. Firefox 15
144. Firefox 14
145. Firefox 13
146. Firefox 12
147. Firefox 11
148. Firefox 10
149. Firefox 9
150. Firefox 8
151. Firefox 7
152. Firefox 6
153. Firefox 5
154. Firefox 4
155. Firefox 3.6
156. Firefox 3.5
157. Firefox 3
158. Firefox 2
159. Firefox 1.5

Whew! That's a lot of Firefoxen!