Nathan Explosion

Give this a try - plugin instead of trying to write some javascript.
It will insert this:
<div class="popup" id="51f18_16504"></div> <script src="https://www.powr.io/powr.js?platform=html"> ...on every front-end page of your site, apart from the /login page.
(NE) Exclude _ hide script from loading in the login page 1.0.0.xml
Off to the pub now, back tomorrow.

All plugins are in applications\core\interface\ckeditor\ckeditor\plugins\ - custom ones are cunningly named custom-.......

{{if \IPS\Member::loggedIn()->inGroup(array(2, 3, 4,8, 10, 16, 19)) AND \in_array($item->container()->_id,array(3, 15, 23, 56, 73))}} STUFF {{endif}}  

OK, then Google is likely to be stopping you from logging in because it is considered to be insecure - they no longer allow the use of the "Less secure app access" setting to avoid this, they disabled it recently.
Do the following:
Login to the account in a browser Go to https://myaccount.google.com/u/3/security Go to the 'Signing in with Google' section and enable 2FA Once enabled, you will then have an entry titled 'App passwords' - click it Change the 'Select app' entry to 'Mail Change the 'Select device' entry to 'Other (custom name') Click 'Generate' Use that password in your IPS email configuration instead of the main account password    

Add this to your template:
{{\IPS\Output::i()->jsVars["variable"]=$value;}} Then use this in your JS code (assuming it is using the IPS framework):
alert(ips.getSetting('variable'));  

Have you enabled the "Can post HTML?" setting in your group membership, which will expose the 'Source' button in the Editor to allow you to view and add HTML?

Yes.

Contact the developer of the application.
 

Yep - you are shown only those items that are compatible with the version you running.

I'm not aware of one (if I was, I would have linked to it) - shouldn't be too difficult to code, either, if it's a per-app basis that you want it on.
 

Flags the topic so that you can then filter the 'Topic Feed' block based on 'Featured' topics, instead of pinning a topic (which will stick it at the top of the forum listing) and using that to filter on instead.

Create an announcement via the modcp, and set the Page Location to sidebar

https://invisioncommunity.com/ignore/

(NE) Change all word filters to 'Block submission' 1.0.0.xml

 

 

https://invisioncommunity.com/forums/topic/466649-access-to-uploaded-files-is-throwing-an-error/?do=findComment&comment=2888035

Use a different browser (Chrome)

It's going to be easier if you post links to your site so people can view the page source instead of just a screenshot. Why? Because you've customised the theme, therefore suggestions people can provide may not work as you may have changed the html.
Anyway - based on the assumption that you haven't modified the template, then edit core -> front -> global -> navBarItems
Find (there are 2 instances of this, and the ... is there to indicate that there is more code on the 2 lines you will find):
 
<a href="{{if $item->link()}}... Add the following after the opening "<a ":
title="{$item->title()}" to make:
<a title="{$item->title()}" href="{{if $item->link()}}... Save the template.
That's the basic title on hover.
If you want it a little different then add this too:
data-ipstooltip to make:
<a title="{$item->title()}" data-ipstooltip href="{{if $item->link()}}... Save the template.
Can you do this with CSS? Potentially, but as the 'title' is an attribute of an html element then it should be added in the html code, not using css.

Which is wrong - you need to follow the instructions under the box, and provide the FULL tracking code provided by Google, similar to my third image 

Have you enabled status updates on your own profile, on the front-end?