Web cookies (also called HTTP cookies, browser cookies, or simply cookies) are small pieces of data that websites store on your device (computer, phone, etc.) through your web browser. They are used to remember information about you and your interactions with the site.
Purpose of Cookies:
Session Management:
Keeping you logged in
Remembering items in a shopping cart
Saving language or theme preferences
Personalization:
Tailoring content or ads based on your previous activity
Tracking & Analytics:
Monitoring browsing behavior for analytics or marketing purposes
Types of Cookies:
Session Cookies:
Temporary; deleted when you close your browser
Used for things like keeping you logged in during a single session
Persistent Cookies:
Stored on your device until they expire or are manually deleted
Used for remembering login credentials, settings, etc.
First-Party Cookies:
Set by the website you're visiting directly
Third-Party Cookies:
Set by other domains (usually advertisers) embedded in the website
Commonly used for tracking across multiple sites
Authentication cookies are a special type of web cookie used to identify and verify a user after they log in to a website or web application.
What They Do:
Once you log in to a site, the server creates an authentication cookie and sends it to your browser. This cookie:
Proves to the website that you're logged in
Prevents you from having to log in again on every page you visit
Can persist across sessions if you select "Remember me"
What's Inside an Authentication Cookie?
Typically, it contains:
A unique session ID (not your actual password)
Optional metadata (e.g., expiration time, security flags)
Analytics cookies are cookies used to collect data about how visitors interact with a website. Their primary purpose is to help website owners understand and improve user experience by analyzing things like:
How users navigate the site
Which pages are most/least visited
How long users stay on each page
What device, browser, or location the user is from
What They Track:
Some examples of data analytics cookies may collect:
Page views and time spent on pages
Click paths (how users move from page to page)
Bounce rate (users who leave without interacting)
User demographics (location, language, device)
Referring websites (how users arrived at the site)
Here’s how you can disable cookies in common browsers:
1. Google Chrome
Open Chrome and click the three vertical dots in the top-right corner.
Go to Settings > Privacy and security > Cookies and other site data.
Choose your preferred option:
Block all cookies (not recommended, can break most websites).
Block third-party cookies (can block ads and tracking cookies).
2. Mozilla Firefox
Open Firefox and click the three horizontal lines in the top-right corner.
Go to Settings > Privacy & Security.
Under the Enhanced Tracking Protection section, choose Strict to block most cookies or Custom to manually choose which cookies to block.
3. Safari
Open Safari and click Safari in the top-left corner of the screen.
Go to Preferences > Privacy.
Check Block all cookies to stop all cookies, or select options to block third-party cookies.
4. Microsoft Edge
Open Edge and click the three horizontal dots in the top-right corner.
Go to Settings > Privacy, search, and services > Cookies and site permissions.
Select your cookie settings from there, including blocking all cookies or blocking third-party cookies.
5. On Mobile (iOS/Android)
For Safari on iOS: Go to Settings > Safari > Privacy & Security > Block All Cookies.
For Chrome on Android: Open the app, tap the three dots, go to Settings > Privacy and security > Cookies.
Be Aware:
Disabling cookies can make your online experience more difficult. Some websites may not load properly, or you may be logged out frequently. Also, certain features may not work as expected.
RELOCATE everyone in the immediate work area to a safe location.
ALERT- Dial 911. Follow the directions of the dispatcher. The person that dials 911 must meet UCFD upon arrival to provide further information about the emergency.
CONFINE- If it can be done safely, close doors to confine the area where the emergency occurred. Post an “Emergency Hangtag” on the door(s) to prevent reentry by other personnel.
EVACUATE the building through the nearest exit. Do not run. Do not use elevators.
REPORT to your designated meeting site.
REENTER once the lab has been cleared by emergency personnel.
Incidental Releases
Evacuate everyone in the lab and post an “Emergency Hangtag” on the door(s) to prevent reentry by other lab personnel.
Contact the PI or Laboratory/Facility Manager prior to cleaning up any small spill.
Dial 911 if the PI/Facility Manager is not available and follow the General Course of Action.
Ensure the risk of exposure is minimal with the PI/Lab Manager. If a danger or risk of exposure exists, follow the General Course of Action
Avoid contact with contaminated areas. If the spill is located in a non-ventilated area, relocate, dial 911, and follow the General Course of Action.
If safe, turn off ignition sources and compressed gases. If not, evacuate the lab, call 911, and follow the General Course of Action
Put on appropriate personal protective equipment indicated in the safety data sheet. Work with another person to clean up the spill. Do not clean up a spill alone.
Use the appropriate spill kit to control the source and confine the spill to a small area.
Place spill debris in an appropriate container, tightly seal or close container, and properly label the waste.
Forcibly hold both eyes open under an emergency eyewash to ensure an effective wash behind both eyelids.
If contact lenses are being worn, remove the contacts while flushing.
Dial 911 or have someone else from the lab dial 911.
Continue flushing the eyes underneath the eyewash until emergency personnel arrive.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.
First Aid: Eye Exposure to Nonhazardous Solid
If eyes are exposed to glass, metal, wood, or other type of particulate, do NOT flush eyes under an emergency eyewash.
Close or cover the eye(s), dial 911, and have emergency personnel evaluate the eye(s) prior to flushing.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.
First Aid: Skin Exposure
Wash affected area(s) with tepid water from an emergency safety shower. Take care not to break skin.
Remove or cut off contaminated clothing while rinsing. Do not pull contaminated clothing over the head.
For chemical and thermal burns, flush affected area(s) with water from the safety shower, if indicated in safety data sheet.
For blood, biological, or radiological exposures use soap and water.
Dial 911 or have someone else from the lab dial 911.
Keep flushing affected area(s) underneath the safety shower until emergency personnel arrive.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.
First Aid: Inhalation of Chemical Vapors, Fumes or Smoke
If exposed individual is unconscious, do NOT enter the lab if a possibility of oxygen depletion, toxic vapors, or an explosive
atmosphere exists. Dial 911.
If exposed individual is conscious, move the person to fresh, uncontaminated air. Dial 911.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.
First Aid: Chemical Ingestion
If safe to do so, move affected individual to an uncontaminated area.
Dial 911 or have someone else from the lab dial 911.
Do not induce vomiting or drink water or other liquids unless instructed to do so by emergency personnel.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.
First Aid: Exposure to Cryogenic Liquids
If skin comes into contact with a cryogen, place affected area in a warm water bath (not above 40°C/104°F). Never use hot or cold water
or dry heat. Thawing of the affected area(s) must be done gradually.
If a burn from a cryogen occurs, do not rub the burned area. Rubbing can result in further tissue damage.
Dial 911 and seek medical attention as soon as possible for all frostbite injuries.
Report the injury to your principal investigator and/or laboratory/facility manager and EHS.