Firefox takes around 30 seconds to initially start.
Initially staring Firefox 16 takes a long time. There is no evidence that anything is happening (CPU, disk, or task manager programs) for 15-30 seconds before the program finally loads. Once it is running, performance is normal. Other browsers and programs launch immediately, with no delay.
I have tried starting in Safe mode, using a new user profile, clearing and deleting the cache, running CCleaner, resetting Firefox, and reinstalling from scratch. Add-ons and extensions don't seem to be the cause of the delay. It is interesting that the delay also exists while loading the profile manager (15-30 seconds before it opens), and also before the confirmation dialog to start in Safe mode.
I am only using Windows Defender. The problem still exists when I disable real-time protection.
I would appreciate any help getting Firefox running up to its full potential!
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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.
See:
I removed and re-added Firefox to the firewall with no change. I don't see any entries or other information about the plugin-container, though. I removed Firefox from the firewall one more time and it is still making outbound connections even though it is not listed as an allowed application. Wondering if the firewall was working at all, I verified that I could block all in- and out-bound traffic. At this point, I am still experiencing the same delay after trying all suggestions I could find on the Mozilla support site.
Me too. This is really a nuisance. I've resetted firefox. I've uninstalled completetely, deleted all preferences. Disabled add-ons. Start-time is from 30 to 50 seconds which is unbearable. Restart-time is even longer.
I have a very fast system X79, i-3930K, 16 GB, GTX680SLi, win 7 64
Firefox is getting worse and worse. This issue started with version 18.
Firefox is killing itself caused be too many cooks und upgrades and features.
I need a simple working browser and not a one for all solution. Back to the roots.
由firefighter4于修改