Firefox is slow or stops working Firefox hangs or is not responding. If Firefox uses a lot of computer resources, see the solutions proposed in Firefox uses too much memory or CPU resources - How to fix. If you get a "Warning: Unresponsive script" prompt, see Warning Unresponsive script - What it means and how to fix it.
If Firefox closes unexpectedly, see Troubleshoot Firefox crashes closing or quitting unexpectedly. Note: The Refresh Firefox feature can fix many issues by restoring Firefox to its default state while saving your essential information. Consider using it before going through a lengthy troubleshooting process. Note: If you send performance data , Mozilla will gather data including hangs for your Firefox, which will help making Firefox better for future versions.
Table of Contents 1 Firefox hangs at random times 1. Information : The "places" files store the annotations, bookmarks, favorite icons, input history, keywords, and browsing history a record of visited pages.
Warning: This will clear your browsing history and remove bookmarks of the day. Note: If you are unable to open or use Firefox, follow the instructions in Finding your profile without opening Firefox. Select the Advanced panel and the General tab. Uncheck Use hardware acceleration when available. Click the Firefox menu and select Exit. Click the Firefox menu at the top of the screen and select Quit Firefox.
Click the Firefox menu and select Quit. Start Firefox the way you normally do. Select the General panel. To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again. When you figure out what's causing your issues, please let us know. It might help other users who have the same problem. Try to boot the computer in Windows Safe mode with network support press F8 on the boot screen as a test to see if that helps.
A possible cause is security software firewall,anti-virus that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes update to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
Do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox. Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software. Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer. Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and re install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.
Thanks for all the suggestions. I tried booting Windows 7 into Safe Mode with networking. SeSodesa thanks for the report! SeSodesa could you share the link of the document? We did some improvement on nightly. If it's not much trouble would you mind trying it on nightly? Sorry, something went wrong. I am unable to link to the specific document, as it is in a private repository. I tried loading the page on nightly, but the same thing happened again: two load attempts, the first one fails and then the second one crashes the browser.
The only thing that was maybe a little different was that the about:blank page didn't flash on screen visibly, before the second load attempt. I don't know if GitLab does something special to prevent larger documents from loading and the failure occurs because of that, but it might be something to look into. Don't worry, thanks for the info. Each item has a share button, you could share it to the clipboard or another app that allows you to copy it and paste it here. SeSodesa we did some improvements in nightly could you verify if this is still an issue?
I will ask to the QA team to help us to verify too. The file size might be an issue, then. I had tested this issue on Release Both of them spring back into life after about seconds, and do what you were expecting to happen. Using the plugin, it shows the page you clicked on. All subsequent clicked links are displayed instantly. Using the standalone reader, in my case, it shows the popup if you allow this link to be displayed; click yes and it is presented in Firefox.
All subsequent clicked links display this popup instantly. I'm now of to Adobe, to request this second timer to be removed ;-. This Problem was a big pain in the neck.
The problem was not with Firefox it was with Adobe, I downloaded the newest Adobe and the problem went away. Good Luck. I created a one page PDF see here yesterday. In FireFox, only 3 links out of 8 worked. I only got a blank white page, or error page. In Opera and IE, I got the same failures!
Removing the ".
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