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DITM by arai_a

DITM: Developer In The Middle is an extension that allows you to modify the web server's response in place, to investigate the issues on web site.

5 (5 reviews)
21 Users
You'll need Firefox to use this extension
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1. Open DITM panel in Developer Tools2. Select URL from "Used" list3. Modify the source4. Hit Save (✓) button to save the modification5. Reload the webpage
About this extension
DITM: Developer In The Middle is an extension for Firefox Developer Tools.
This allows you to modify the web server's response, like, prettify JS code, add debug print or modify logic, tweak CSS rule etc, in order to investigate the issue on website, without deploying again, or even if it's not your own website.

Known issue:
  • drop down menu doesn't work if the devtools is opened in separate window, on Firefox 79-90 (see bug 1659618)
Rated 5 by 5 reviewers

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Permissions and dataLearn more

Required permissions:

  • Extend developer tools to access your data in open tabs
  • Access your data for all websites
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Version
2.2.0
Size
152.78 KB
Last updated
6 months ago (Feb 22, 2025)
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Release notes for 2.2.0
  • Made compatible with https://bugzilla.mozilla.org/show_bug.cgi?id=1670403 , by making the modified response not-cacheable and also clear the cache after modifying the rule
  • Also added a note about the Firefox built-in "script override" and "network override", which provides the similar functionality. Please consider migrating to them for simple cases
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