{"id":1600,"date":"2010-01-05T15:21:09","date_gmt":"2010-01-05T22:21:09","guid":{"rendered":"http:\/\/blog.mozilla.org\/metrics\/?p=1600"},"modified":"2019-09-18T12:05:38","modified_gmt":"2019-09-18T19:05:38","slug":"firefoxs-improving-stability","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/metrics\/2010\/01\/05\/firefoxs-improving-stability\/","title":{"rendered":"Firefox’s Improving Stability"},"content":{"rendered":"

We\u2019ve heard quite a bit of anecdotal evidence suggesting that Firefox usage saw an upswing in the frequency of crashes during the second half of 2009.\u00a0 This experience has generally been tied to Firefox 3.5, which was released in late June.\u00a0 Ideally, we\u2019d have a lot of really rich data to tell a story around the crashiness of Firefox and the associated improvements<\/a> that are being made.\u00a0 While some new data systems are about to hit the scene (see here<\/a> and here<\/a>) allowing us to figure out precisely what\u2019s going on, we do have a couple data sets that we can rely on today.<\/p>\n

Let\u2019s now try to answer the question, \u201chave Firefox users noticed a decrease in the frequency of Firefox crashes during recent months?<\/em>\u201d<\/p>\n

First, let\u2019s look at the total number of crashes.\u00a0 Below you\u2019ll see a trended ratio that is total daily crashes (i.e., crash report submissions) divided by total active daily users of Firefox.\u00a0 For example, 1M instances of Firefox crashes in a day divided by 100M users of Firefox on that day would give a ratio of 1%.\u00a0 It\u2019s a slight trend, but you can see that since early October, the ratio has decreased.\u00a0 (Please note that this trended ratio assumes a constant client side throttling percentage.)<\/p>\n

\"crash_ratio_chart\"<\/p>\n

Next, let\u2019s look at some slightly more qualitative information \u2013 the Firefox Uninstall Survey<\/a> (data is available here<\/a>).\u00a0 For the question, \u201cWhy did you uninstall Firefox?\u201d, we can see if there\u2019s any trend in the frequency with which people are selecting \u201cToo many crashes\u201d as an response option.\u00a0 While it is concerning that this option continues to be the #1 reason cited by users, the trend has been in decline since August.<\/p>\n

\"Uninstall_Survey_Q4_v2\"<\/p>\n

I want to stress that the data points above merely represent some very early analysis \u2013 much more is on the way!\u00a0 That said, the charts above do suggest, at least directionally, that efforts by the Mozilla community (e.g., CrashKill<\/a>, Socorro team<\/a>) have been making an impact in recent months.<\/p>\n","protected":false},"excerpt":{"rendered":"

We\u2019ve heard quite a bit of anecdotal evidence suggesting that Firefox usage saw an upswing in the frequency of crashes during the second half of 2009.\u00a0 This experience has generally been tied to Firefox 3.5, which was released in late … Continue reading<\/a><\/p>\n","protected":false},"author":60,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100,101],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/posts\/1600"}],"collection":[{"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/comments?post=1600"}],"version-history":[{"count":0,"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/posts\/1600\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/media?parent=1600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/categories?post=1600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.mozilla.org\/metrics\/wp-json\/wp\/v2\/tags?post=1600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}