Roam is the ideal tool to draft Twitter threads. But until now, you had to manually copy-paste tweets from Roam to Twitter. With the Mercury browser extension, that’s a thing of the past!
Mercury was developed by Andy Gao. Setting up and using the extension is easy:
Step 1—Install.
Mercury is a Chrome plugin, but it also works in Vivaldi and Brave browsers. Click here to download and install it.
Step 2—Set up.
After installation, a Mercury will appear in your list of extensions:

Clicking the extension, you get only one option—to login:

Once you’re logged in and given Mercury the permissions to post to your Twitter timeline, you get the following options:
- Set the parent tag to activate ‘Mercury blocks’;
- Show/hide the character counter;
- Turn tweet receipts on/off;
- Set tweet receipt template.

Step 3—Draft and send you tweet(s).
Composing a thread with Mercury is simple:
- Create a parent block with the tag
#TweetThis
(or the tag you’ve set up in the previous step); - Nest the tweets of the thread underneath—make sure they’re all on the same indentation level.

Post the thread by clicking the Twitter icon on the right side of the #TweetThis
block.
To not accidentally tweet the same thread twice, I like to add the tag #TWEETED
to the parent block as a reminder.
See the official Mercury page for the change log and additional information.
Join the conversation.