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

Whew! That's a lot of Firefoxen!