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burp proxy seems extremely slow since updating to macOS high Sierra

Andre | Last updated: Nov 14, 2017 02:37PM UTC

Hi - is there any update coming out to burp professional to fix this? I am having major issues with my proxy speed since updating. Thanks

Liam, PortSwigger Agent | Last updated: Nov 14, 2017 03:22PM UTC

This could be caused by the App Nap feature. Burp Suite is not App Nap aware, so you would have to turn it off across your entire system to test it out. Launch Terminal, located in the /Applications/Utilities folder. In the Terminal window that opens, enter the following command: defaults write NSGlobalDomain NSAppSleepDisabled -bool YES Note: You can triple-click the above line of text to select the entire command. You can then copy/paste the command into the Terminal window. Press Enter or Return, depending on your keyboard. The command will be performed, although no feedback about the command's status will display in the Terminal window. When you disable App Nap system-wide, you're not placing check marks in the Prevent App Nap checkboxes; you're simply turning the feature off system-wide.

Burp User | Last updated: Nov 14, 2017 03:35PM UTC

I have tried both chrome and firefox browsers and both are extremely slow now through the proxy. Never had any issues before.

Burp User | Last updated: Nov 14, 2017 06:04PM UTC

Still seems to have issues - when i run the command and start burp it works great then slows down drastically after 2 minutes.

Liam, PortSwigger Agent | Last updated: Nov 15, 2017 11:25AM UTC

Can you tell us exactly what you are seeing slow down? What tasks are you performing with Burp?

Burp User | Last updated: Nov 15, 2017 02:01PM UTC

Just browsing websites thru the proxy seems extremely slow since updating my Mac.

Liam, PortSwigger Agent | Last updated: Nov 15, 2017 02:21PM UTC

We've updated to the latest version of Sierra and can't replicate your issue. Is this happening with all websites? Can you give us some examples of the sites you are proxying?

Burp User | Last updated: Nov 15, 2017 03:35PM UTC

I am using firefox developer browser as well - basic sites such as espn.com and even google.com were slow yesterday - I will try again today

Liam, PortSwigger Agent | Last updated: Nov 15, 2017 03:36PM UTC

Are you experiencing the same issue on your systems native Safari browse? Are you connecting to the internet via a corporate proxy?

Burp User | Last updated: Nov 15, 2017 04:41PM UTC

proxy browsing is still extremely slow after 2 minutes - really not sure why - the rest of burp works fine - intruder repeater add ons etc

Burp User | Last updated: Nov 15, 2017 05:27PM UTC

I have tried chrome firefox and safari and all have the same issue. I am not using any corporate proxy or vpn, just connecting from home network. Thanks

Burp User | Last updated: Nov 15, 2017 07:46PM UTC

I have upgraded to firefox quantum and that has seem to fixed the issue. plz close ticket. Thanks!

Liam, PortSwigger Agent | Last updated: Nov 16, 2017 09:25AM UTC

Thanks for letting us know Andre.

Burp User | Last updated: Nov 19, 2018 02:16PM UTC