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

Whew! That's a lot of Firefoxen!