Anca/ Active tab test stabilization

[soncuteanca]

Relevant Links

Bugzilla: 1979286
TestRail: https://mozilla.testrail.io/index.php?/cases/view/134646

Description of Code / Doc Changes

• test_active_tab fails intermitently in CI on mac. Can't reproduce it locally. Added a wait condition and handle in one take the context switching to avoid potential stalling.

Process Changes Required

Mark the relevant boxes:

• Adds a dependency (rerun pipenv install)
• Changes the BasePage
• Changes or creates a BOM/POM (name the object model): _
• Changes CI flow
• Changes scheduled Beta or DevEdition
• Changes Git hooks or Github settings
• Changes L10n harness

Screenshots or Explanations

If you need to explain your code, do it here.

Comments or Future Work

Do we need to start another PR soon to address something you saw while working on this?

Workflow Checklist

• Please request reviewers
• If this is an unblocker, please post in Slack.
• If asked to address comments, please resolve conversations.
• If asked to change code, please re-request review from the person who wanted changes.

Thank you!

[sv-hyacoub]

LGTM!