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.

Cannot set a breakpoint in DevTools

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by rgelb

rgelb
rgelb
more options

I try to set a breakpoint in the Debugger tab of the DevTools. I click on the numbers bar on the left. The breakpoint seems to set briefly for a fraction of a second, then it disappears.

Here is a repro: https://www.youtube.com/watch?v=-5xQjxaaqfY

I think it's been like that since v58. Am I missing a setting?

I try to set a breakpoint in the Debugger tab of the DevTools. I click on the numbers bar on the left. The breakpoint seems to set briefly for a fraction of a second, then it disappears. Here is a repro: https://www.youtube.com/watch?v=-5xQjxaaqfY I think it's been like that since v58. Am I missing a setting?

Modified by rgelb

All Replies (2)

Shadow110
Shadow110
more options

Hi, I just supply info and have no idea on this subject but am trying and yes I know these are for Firefox Developer https://www.mozilla.org/en-US/firefox/developer/ which you may want to get and install as it does have a compatibility mode to run with other Firefox Versions. It does update every couple of days. Am also hoping that some of this can be used to provide enough info to you for use in 59.0.2 :

https://www.google.com/search?q=firefox+set+a+breakpoint+in+the+Debugger+tab+of+the+DevTools&ie=utf-8&oe=utf-8&client=firefox-b for more.

Please let us know if this solved your issue or if need further assistance.

rgelb
rgelb Question owner
more options

@pkshadow No, sorry, it didn't resolve the issue.