WordPress: Send to Substack plugin not working

sagesteppewild · Member · Dec 12, 2025 at 12:45 pm
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So I just followed the instructions to install the WP to Substack plug in and companion chrome extension described at https://specialprojects.automattic.com/2025/08/27/posting-from-wordpress-to-substack/ but when I click the Send to Substack button nothing happens

The blog I need help with is: (visible only to logged in users)
seabear211 · Member · Jan 21, 2026 at 12:42 pm
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I’ve been searching for the plugin and can’t find it.
sagesteppewild · Member · Jan 21, 2026 at 2:44 pm
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Posting from WordPress to Substack
seabear211 · Member · Jan 21, 2026 at 3:03 pm
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I just tried with mine. I installed the plugin by uploading it to wordpress, and then I installed the chrome extention while in developer mode.

Have you made sure that you have your substack link correct? There’s two

substack.com/@userhandle
and
https://userhandle.substack.com

it’s the latter one you want.
sagesteppewild · Member · Jan 21, 2026 at 3:47 pm
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That is interesting. Mine was set at the first example. I have changed it.

Just tested and that was the problem!!!!

Now working.

But one thing i have run into is almost every time I close and reopen chrome it forgets that the chrome extension has been installed and I have to reinstall it. I have had to reinstall it like 5 times now.

Thanks SOOOO much!!
seabear211 · Member · Jan 21, 2026 at 3:53 pm
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although it is called a chrome extention, it doesn’t necessarily mean it won’t work on firefox or safari (if you want to try that)
sagesteppewild · Member · Jan 21, 2026 at 4:04 pm
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I would love to install it in Firefox as that is my default, but when I try to import the .zip it says its corrupted
seabear211 · Member · Jan 21, 2026 at 4:05 pm
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have you unzipped it first?
sagesteppewild · Member · Jan 21, 2026 at 4:11 pm
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Firefox only imports .xpi, .jar and .zip files
seabear211 · Member · Jan 21, 2026 at 4:13 pm
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Ah I see, when I’m not at work, I’ll look at the code in more depth and see if I can add a line to make it support firefox (no promises)
sagesteppewild · Member · Jan 21, 2026 at 4:18 pm
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Wooohoooo!

So I have done the 2nd export to substack now and noticing 1 odd behavior.

So it opens the new tab, and I can see it paste in the title, then subtitle, then the rest of the post.

When it completes the cursor is at the bottom on the post.

When I scroll up to the top the title and subtitle that were properly inserted are now gone and have to be manually entered.
seabear211 · Member · Jan 21, 2026 at 4:19 pm
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Yh I had that issue too :’) (I’ll see if I can fix that too)
seabear211 · Member · Jan 21, 2026 at 6:41 pm
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https://drive.google.com/file/d/1xz1wuiA-BrnYxnld5Ac7b2sjaXAZ3Qzc/view?usp=sharing

I haven’t been able to convert it, but fixed the title issue
sagesteppewild · Member · Jan 21, 2026 at 8:46 pm
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This is what I get when I try to import the new version into chrome
seabear211 · Member · Jan 21, 2026 at 8:49 pm
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hmmm, how odd. I haven’t changed that file from the original, so if you take the one from the original and copy it into the new one, that should work.
sagesteppewild · Member · Jan 21, 2026 at 9:04 pm
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I see. the new zip has a mac folder in it

So within the new folder named wp-substack-extension 3 if I go into the subfolder named then it installs

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