Garmin connect website freezes

I'm not seeing your exact problem, but in general the activity page in the Connect website can be very slow to load. For me, it can take 5-10 seconds. I think the map and some of the charts (like Run/Walk) might be the culprits. If you're able to somehow customize the charts, try turning off Run/Walk. I can imagine it might not be possible, since just opening the activity page freezes your laptop.

It also seems like your laptop might have its own issues if a slow webpage brings it to its knees and makes it unusable.

As a workaround, I cooked up a little script to help you export your activity file.

1) Open the Connect website and log in: https://connect.garmin.com/ 

2) Go to the activity list, copy a link to the activity you want to export (right-click > Copy Link) and paste it somewhere you can edit text (like Notepad in Windows or Notes in macOS)

The activity link will look like this (without the square brackets):

[https://connect.garmin.com/modern/activity/ACTIVITYID]

ACTIVITYID will actually be a big number, like 1234567890

3) In the same browser tab, open the browser dev tools 

Windows: CTRL-SHIFT-I

Mac: CMD-OPTION-I

4) Select Console tab

5) Type the following text in the console and press Enter/Return:

allow pasting

6) In a different browser tab, open https://pastebin.com/raw/gXd1FE58, select all the text and copy it (this is the script for manually exporting an activity file)

In the original console:

7) Paste the text from 6) and press Enter/Return

8) Type the following line into the console and press Enter/Return

exportActivity(ACTIVITYID)

Except instead of ACTIVITYID, type the actual activity ID (number) from step 2).

e.g.

exportActivity(1234567890)

This will download the original FIT file inside a ZIP, same as if you'd clicked Export File on the activity page.