We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

page not found at the first click

  • 2 replies
  • 2 have this problem
  • 8 views
  • Last reply by anuswara

anuswara
anuswara
more options

Hi, why if I open a page in Ff (36 and 37, no issues with previous versions) I go http://postimg.org/image/xz6do8oy9/ and after 0,5 seconds or less! (i.e. simply clicking on Reload Page, or "Try again" in the photo above) all is fine? this happens sometimes (but since a few days very often) on both my PCs.

as firefox would need a "second click" to communicate with the router. not a firewall issue. regardless of the profile, if new or "unclean". thanks.

Hi, why if I open a page in Ff (36 and 37, no issues with previous versions) I go http://postimg.org/image/xz6do8oy9/ and after 0,5 seconds or less! (i.e. simply clicking on Reload Page, or "Try again" in the photo above) all is fine? this happens sometimes (but since a few days very often) on both my PCs. as firefox would need a "second click" to communicate with the router. not a firewall issue. regardless of the profile, if new or "unclean". thanks.

Modified by anuswara

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check if it helps to start Firefox in Safe Mode by holding down the Shift/Options key.

It is possible that your security software (firewall, anti-virus) 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 install for Firefox and the plugin-container process and the updater process.

See:

anuswara
anuswara Question owner
more options

Hi,

if the firewall block FF, why every time after 0,2 seconds it works fine? if the firewall block it, then even after a lot of attemps I would be unable to get FF working. Instead I can open 15 tab at the same time, without issues. after 1 second opening this forum or google I obtian the message above, after 0.2 seconds I click refresh: all is fine. its strange right?

(Safe mode: since I have no idea when the issue will happen, I should navigate in [un]safe mode the whole day, this were a risk without noscript and ADB). No proxy.

the links: my big problem is that I am able to navigate well with FF! sometimes it happens as FF could not contact the router...but a Refresh solves the problem. I would prefer to get FF working without click Refresh.

Firewall and addons: if there were issue with firewall or addons I should see the same error message even after clicking Refresh ok?

perhaps I will try switching to true the parameter network.dns.disablePrefetch

cookie &cache: always deleted at FF shutdown.