**Affected versions** * Firefox 69.0a1 (20190702093917) **Affected platforms** * Windows 10 x64 * macOS 10.14 **Preconditions** * Download and install https://archive.mozilla.org/pub/firefox/nightly/2019/07/2019-07-02-09-39-17-mozilla-central/ . * Use NetLimiter to simulate a very poor connection (I set my limit to 5kb). * Create a user.js with “user_pref("app.update.log", true);”. **Steps to reproduce** 1. Launch Firefox and quickly go to Menu ->Help ->About Firefox. 2. Open Browser console and check for update progress. 3. Disable NeLlimiter. **Expected result** * Same download progress is shown in UI and browser console. **Actual result** * If “Checking for updates” message is still present when About Firefox window is opened, it remains stuck in that place until closed and opened again. **Regression Range** * I cannot reproduce the issue on Firefox 69.0a1 (20190701095406). Generated a pushlog: Last good revision: 0176f11e448f372c7d45dcff967d6773efda9ed5 (2019-07-01) First bad revision: fd2778a2ce8ba1284cba867f4358f9fcaf795568 (2019-07-02) Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0176f11e448f372c7d45dcff967d6773efda9ed5&tochange=fd2778a2ce8ba1284cba867f4358f9fcaf795568 **Additional Notes** * I cannot reproduce the issue using the above steps on Firefox Developer Edition 69.0b1 (20190701201355). * Note that the issue may be intermittent. * The issue is reproducible using both nsIIncrementalDownload and BITS. * Attached a screen recording with the issue. * Attached a log from the browser console: [link](https://pastebin.com/aBayfKUy).
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**Affected versions** * Firefox 69.0a1 (20190702093917) **Affected platforms** * Windows 10 x64 * macOS 10.14 **Preconditions** * Download and install https://archive.mozilla.org/pub/firefox/nightly/2019/07/2019-07-02-09-39-17-mozilla-central/ . * Use NetLimiter to simulate a very poor connection (I set my limit to 5kb). * Create a user.js with “user_pref("app.update.log", true);”. **Steps to reproduce** 1. Launch Firefox and quickly go to Menu ->Help ->About Firefox. 2. Open Browser console and check for update progress. 3. Disable NeLimiter. **Expected result** * Same download progress is shown in UI and browser console. **Actual result** * If “Checking for updates” message is still present when About Firefox window is opened, it remains stuck in that place until closed and opened again. **Regression Range** * I cannot reproduce the issue on Firefox 69.0a1 (20190701095406). Generated a pushlog: Last good revision: 0176f11e448f372c7d45dcff967d6773efda9ed5 (2019-07-01) First bad revision: fd2778a2ce8ba1284cba867f4358f9fcaf795568 (2019-07-02) Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0176f11e448f372c7d45dcff967d6773efda9ed5&tochange=fd2778a2ce8ba1284cba867f4358f9fcaf795568 **Additional Notes** * I cannot reproduce the issue using the above steps on Firefox Developer Edition 69.0b1 (20190701201355). * Note that the issue may be intermittent. * The issue is reproducible using both nsIIncrementalDownload and BITS. * Attached a screen recording with the issue. * Attached a log from the browser console: [link](https://pastebin.com/aBayfKUy).