Facebook won't load on MBP in Firefox or Safari

[stargirl71]

For the last several days, Facebook won't load at home on our two MBPs over our wifi - or, on the rare event that it does, it is slow and will not refresh properly - in either Firefox or Safari. Everything else loads without a problem - as does Facebook on the iPad on the same home wifi network. Just prior to this, we were travelling and using wifi outside of our our home - Facebook loaded on our MBPs perfectly then.

Am not particularly tech-minded but have done/tried the following:

• Cleared the history, cookies, cache for both browsers
• Reset modem and router manually and also reboot the router via http://192.168.1.1/
  
• Updated browsers

The only thing of note that I can recall changing is that I've uninstalled Adobe Flash.

Running OS X 10.10.5
Firefox 42.0
Safari 9.0.1

I just tried, as a thought, installing Chrome and Facebook opens perfectly??? I'd still like to work out why it's not loading in either of the other two browsers. Firefox is what I usually use. TIA.

 

[vmachiel]

Using any plugins?

 

[stargirl71]

Using any plugins?

Managed to solve the problem (for now?) Deleted the home wireless network, switched off the modem and router for an extended period of time, then rebooted and re-added the network. Has been working fine since then. Not sure what the problem was...hopefully it doesn't come back! Thanks for the tip (I'll check for plugins as well as a matter of course.)

 

[vmachiel]

Managed to solve the problem (for now?) Deleted the home wireless network, switched off the modem and router for an extended period of time, then rebooted and re-added the network. Has been working fine since then. Not sure what the problem was...hopefully it doesn't come back! Thanks for the tip (I'll check for plugins as well as a matter of course.)

Maybe it was a DNS issue? Do you use a custom server? If not, your router may cache DNS responses so a reboot would fix that. To flush the DNS on your mac use:
sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say flushed

 

[stargirl71]

Maybe it was a DNS issue? Do you use a custom server? If not, your router may cache DNS responses so a reboot would fix that. To flush the DNS on your mac use:
sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say flushed

Custom server? No, I don't think so!? It's been fine since so maybe the cache issue was it? Thanks for the additional info for flushing the cache. Will keep it handy for next time. Cheers.